Getting Exception connecting Yahoo server

Getting Exception connecting Yahoo server - java

package session;
import java.io.FileWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.swing.JOptionPane;
import org.openymsg.network.FireEvent;
import org.openymsg.network.Session;
import org.openymsg.network.SessionState;
import org.openymsg.network.event.SessionListener;
public class BotGUI extends javax.swing.JFrame implements SessionListener{
/** Creates new form BotGUI */
FileWriter fw;
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
public BotGUI() {
initComponents();
}
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jPanel2 = new javax.swing.JPanel();
jPanel3 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jPanel4 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
uNameTextField = new javax.swing.JTextField();
uPassPasswordField = new javax.swing.JPasswordField();
jButton1 = new javax.swing.JButton();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenuItem3 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel2.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
jPanel3.setBackground(new java.awt.Color(51, 51, 51));
jLabel1.setBackground(new java.awt.Color(0, 0, 255));
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel1.setForeground(new java.awt.Color(255, 255, 255));
jLabel1.setText("Yahoo Login Panel");
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addGap(38, 38, 38)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 140, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(532, Short.MAX_VALUE))
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE)
);
jPanel2.add(jPanel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 0, 710, 30));
jPanel4.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
jLabel2.setText("Username");
jPanel4.add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(30, 20, 60, 20));
jLabel3.setText("Password");
jPanel4.add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(270, 20, 60, 20));
jPanel4.add(uNameTextField, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 20, 140, 20));
jPanel4.add(uPassPasswordField, new org.netbeans.lib.awtextra.AbsoluteConstraints(330, 20, 140, -1));
jButton1.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
jButton1.setText("Login");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jPanel4.add(jButton1, new org.netbeans.lib.awtextra.AbsoluteConstraints(490, 15, 90, -1));
jPanel2.add(jPanel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 30, 710, 60));
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 135, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(293, Short.MAX_VALUE))
);
jMenu1.setText("Option");
jMenuItem1.setText("Logout");
jMenu1.add(jMenuItem1);
jMenuItem2.setText("Load CSV");
jMenu1.add(jMenuItem2);
jMenuItem3.setText("Exit");
jMenu1.add(jMenuItem3);
jMenuBar1.add(jMenu1);
jMenu2.setText("Help");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
public void handleConnectionClosed() {
connectionClosed = true;
loggedIn = false;
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
if(!uNameTextField.getText().equals("") && !uPassPasswordField.getText().equals("")){
Yahoo_login(uNameTextField.getText(),uPassPasswordField.getText());
}else{
JOptionPane.showMessageDialog(null, "Plese Enter User Id and Password");
}
}
Session yahooMessengerSession;
MySessionListener mySessionListener;
boolean loggedIn = false;
boolean connectionClosed = false;
public void Yahoo_login(String uName, String pass) {
connectionClosed = false;
if (loggedIn == false) {
yahooMessengerSession = new Session();
mySessionListener = new MySessionListener(this);
yahooMessengerSession.addSessionListener(mySessionListener);
try {
if ((uName.equals("")) || (pass.equals("")))
{
System.out.println("User name/password is blank");
}
else{
//initialized a file writer for log file
System.out.println("Login start........");
yahooMessengerSession.login(uName, pass, true);
//checks whether user was succesful in login in
if (yahooMessengerSession!=null && yahooMessengerSession.getSessionStatus()== SessionState.LOGGED_ON) {
//this loop is reached when the user has been successfully logined
System.out.println("Login Success");
fw.write("User (" + uName + ") logged in at : " + dateFormat.format("09.05.10") + " \n");
fw.close();
} else {
yahooMessengerSession.reset();
}
}
} catch(Exception e){ }
}
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new BotGUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel4;
private javax.swing.JTextField uNameTextField;
private javax.swing.JPasswordField uPassPasswordField;
// End of variables declaration
public void dispatch(FireEvent fe) {
throw new UnsupportedOperationException("Not supported yet.");
}
}
===========================================================================================
i have to find the error
SEVERE: error during the dispatch of event: FireEvent [org.openymsg.network.event.SessionListEvent to:null from:null message:null timestamp:0 status:0 list type:Friends size:2 LIST]
java.lang.UnsupportedOperationException: Not supported yet.
at yahoomessangerbot.MySessionListener.dispatch(MySessionListener.java:131)
at org.openymsg.network.EventDispatcher.runEventNOW(EventDispatcher.java:133)
at org.openymsg.network.EventDispatcher.run(EventDispatcher.java:114)

http://jymsg9.sourceforge.net/docs/ymsg/network/Session.html
This will help u..

Related

How to make paginations buttons (Next, Previous) that load button values from database?

I want to make a category JPanel in which I get all buttons values from the database on scroll pane but I want to remove the scroll pane and use pagination two buttons (Next, Previous) that control button values from database next or previous.
Output Image.png
Image 2 Frome JAva Floreant POS Like this.
Image#02 JAVA Floreant POS.png
Following my code:
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package posresturent;
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.PreparedStatement;
import static java.awt.Component.CENTER_ALIGNMENT;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.DriverManager;
import java.sql.ResultSet;
import javax.swing.AbstractButton;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JScrollBar;
import javax.swing.SwingConstants;
/**
*
* #author ultronhouse11
*/
public class mainPanel extends javax.swing.JPanel {
/**
* Creates new form mainPanel
*/
private JButton btnCategory;
final int col = 5;
final int rows = 2;
Connection con;
PreparedStatement pst;
ResultSet rs;
public mainPanel() {
initComponents();
cat_buttons();
}
public void cat_buttons() {
try {
Class.forName("com.mysql.jdbc.Driver");
con = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/shopingmoll", "root", "qwer9900");
String sl = "SELECT * FROM `item_types` ";
pst = (PreparedStatement) con.prepareStatement(sl);
rs = pst.executeQuery();
// JFlowPanel jPeople = new JFlowPanel();
//rs.absolute(5);
// while (rs.next()) {
rs.absolute(1);
rs.absolute(5);
String a1 = rs.getString("name");
String a2 = rs.getString("id");
JButton btn = new JButton();
btn.setText("<html><body> <h3>" + a1 + "</h3><br> <b></body></html> ");
btn.setVerticalAlignment((int) CENTER_ALIGNMENT);
btn.applyComponentOrientation(getComponentOrientation());
btn.setFocusPainted(false);
btn.setFocusable(false);
btn.setRequestFocusEnabled(false);
btn.setMaximumSize(new Dimension(110, 90));
btn.setPreferredSize(new Dimension(90, 80));
btn.setMinimumSize(new Dimension(110, 90));
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println(a1+":"+a2);
}
});
//String a2 = rs.getString(2);
ImageIcon img = new ImageIcon("src/posresturent/cat.jpg");
// btn.setIcon(img);
btn.setHorizontalAlignment(SwingConstants.CENTER);
btn.setHorizontalTextPosition(AbstractButton.CENTER);
btn.setVerticalTextPosition(AbstractButton.BOTTOM);
cat_panel.add(btn,"center");
repaint();
revalidate();
//}
// cat_sch.getViewport().setView(jPeople);
} catch (Exception e) {
}
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jTabbedPane1 = new javax.swing.JTabbedPane();
jPanel2 = new javax.swing.JPanel();
sch = new javax.swing.JScrollPane();
jPanel9 = new javax.swing.JPanel();
jPanel11 = new javax.swing.JPanel();
textFieldRectBackground1 = new org.edisoncor.gui.textField.TextFieldRectBackground();
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jTextField3 = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
jPanel10 = new javax.swing.JPanel();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jButton7 = new javax.swing.JButton();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton10 = new javax.swing.JButton();
cat_panel = new javax.swing.JPanel();
jPanel5 = new javax.swing.JPanel();
jButton14 = new javax.swing.JButton();
jButton15 = new javax.swing.JButton();
jPanel6 = new javax.swing.JPanel();
jButton22 = new javax.swing.JButton();
jButton23 = new javax.swing.JButton();
jButton24 = new javax.swing.JButton();
jButton25 = new javax.swing.JButton();
jButton26 = new javax.swing.JButton();
jButton27 = new javax.swing.JButton();
jPanel3 = new javax.swing.JPanel();
jPanel1 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton11 = new javax.swing.JButton();
jButton12 = new javax.swing.JButton();
jButton13 = new javax.swing.JButton();
sch.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Items", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION));
jPanel11.setLayout(new java.awt.GridLayout(1, 0));
textFieldRectBackground1.setDescripcion("Enter Barcode ...");
textFieldRectBackground1.setFocusCycleRoot(true);
jPanel11.add(textFieldRectBackground1);
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"#SrNo", "Product", "Unit", "Rate"
}
));
jTable1.setRowHeight(35);
jScrollPane1.setViewportView(jTable1);
jLabel1.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
jLabel1.setText("Total ");
jLabel2.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
jLabel2.setText("Tax");
jTextField1.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
jTextField1.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
jTextField1.setText("0.00");
jTextField2.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
jTextField2.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
jTextField2.setText("0.00");
jTextField3.setFont(new java.awt.Font("Arial Black", 1, 45)); // NOI18N
jTextField3.setForeground(new java.awt.Color(51, 51, 51));
jTextField3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
jTextField3.setText(" Rs 0.00");
jLabel3.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
jLabel3.setText("<html> Grand <br><br> Total");
javax.swing.GroupLayout jPanel9Layout = new javax.swing.GroupLayout(jPanel9);
jPanel9.setLayout(jPanel9Layout);
jPanel9Layout.setHorizontalGroup(
jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel11, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel9Layout.createSequentialGroup()
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel1)
.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(35, 35, 35)
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jTextField3, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 230, Short.MAX_VALUE)
.addComponent(jTextField1, javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jTextField2, javax.swing.GroupLayout.Alignment.TRAILING))
.addGap(0, 0, Short.MAX_VALUE))
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 309, javax.swing.GroupLayout.PREFERRED_SIZE)
);
jPanel9Layout.setVerticalGroup(
jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel9Layout.createSequentialGroup()
.addComponent(jPanel11, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(1, 1, 1)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 0, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel9Layout.createSequentialGroup()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(7, 7, 7))
.addGroup(jPanel9Layout.createSequentialGroup()
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 69, javax.swing.GroupLayout.PREFERRED_SIZE)))
);
jPanel10.setLayout(new java.awt.GridLayout(7, 0, 0, 3));
jButton4.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/add_shopping_cart_40px.png"))); // NOI18N
jPanel10.add(jButton4);
jButton5.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/up.png"))); // NOI18N
jPanel10.add(jButton5);
jButton6.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/minus.png"))); // NOI18N
jPanel10.add(jButton6);
jButton7.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/add_user.png"))); // NOI18N
jPanel10.add(jButton7);
jButton8.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/delete.png"))); // NOI18N
jPanel10.add(jButton8);
jButton9.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/edit_30px.png"))); // NOI18N
jPanel10.add(jButton9);
jButton10.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/down.png"))); // NOI18N
jPanel10.add(jButton10);
cat_panel.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Category", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Tahoma", 0, 11), new java.awt.Color(51, 51, 51))); // NOI18N
cat_panel.setLayout(new java.awt.GridLayout(0, 1, 3, 5));
jPanel5.setLayout(new java.awt.GridLayout(1, 2, 2, 0));
jButton14.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/previous.png"))); // NOI18N
jButton14.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
jButton14.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton14ActionPerformed(evt);
}
});
jPanel5.add(jButton14);
jButton15.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/next_32.png"))); // NOI18N
jButton15.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
jButton15.setHorizontalTextPosition(javax.swing.SwingConstants.RIGHT);
jButton15.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton15ActionPerformed(evt);
}
});
jPanel5.add(jButton15);
jPanel6.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Groups", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Tahoma", 0, 11), new java.awt.Color(51, 51, 51))); // NOI18N
jPanel6.setLayout(new java.awt.GridLayout(1, 6, 3, 0));
jButton22.setText("jButton22");
jPanel6.add(jButton22);
jButton23.setText("jButton23");
jPanel6.add(jButton23);
jButton24.setText("jButton23");
jPanel6.add(jButton24);
jButton25.setText("jButton22");
jPanel6.add(jButton25);
jButton26.setText("jButton23");
jPanel6.add(jButton26);
jButton27.setText("jButton22");
jPanel6.add(jButton27);
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addComponent(jPanel9, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel10, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(sch)
.addComponent(jPanel6, javax.swing.GroupLayout.DEFAULT_SIZE, 658, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, 124, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cat_panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(2, 2, 2))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel10, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel9, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(cat_panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jPanel6, javax.swing.GroupLayout.PREFERRED_SIZE, 52, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, 0)
.addComponent(sch))
);
jTabbedPane1.addTab("ADD STOCK", jPanel2);
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 1177, Short.MAX_VALUE)
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 513, Short.MAX_VALUE)
);
jTabbedPane1.addTab("ADD ACCOUNTS", jPanel3);
jPanel1.setLayout(new java.awt.GridLayout(1, 6, 4, 0));
jButton1.setText("Add New Stocks");
jPanel1.add(jButton1);
jButton2.setText("Add Category");
jPanel1.add(jButton2);
jButton3.setText("Modification Stock");
jPanel1.add(jButton3);
jButton11.setText("Add Groups");
jPanel1.add(jButton11);
jPanel1.add(jButton12);
jPanel1.add(jButton13);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jTabbedPane1)
.addContainerGap())
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(1, 1, 1)
.addComponent(jTabbedPane1))
);
}// </editor-fold>
private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
// Variables declaration - do not modify
private javax.swing.JPanel cat_panel;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton10;
private javax.swing.JButton jButton11;
private javax.swing.JButton jButton12;
private javax.swing.JButton jButton13;
private javax.swing.JButton jButton14;
private javax.swing.JButton jButton15;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton22;
private javax.swing.JButton jButton23;
private javax.swing.JButton jButton24;
private javax.swing.JButton jButton25;
private javax.swing.JButton jButton26;
private javax.swing.JButton jButton27;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JButton jButton6;
private javax.swing.JButton jButton7;
private javax.swing.JButton jButton8;
private javax.swing.JButton jButton9;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel10;
private javax.swing.JPanel jPanel11;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel5;
private javax.swing.JPanel jPanel6;
private javax.swing.JPanel jPanel9;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTabbedPane jTabbedPane1;
private javax.swing.JTable jTable1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
private javax.swing.JScrollPane sch;
private org.edisoncor.gui.textField.TextFieldRectBackground textFieldRectBackground1;
// End of variables declaration
}
Next Pagination Button eventAction
private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
Previous Button Pagination event action
private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

Please check the bellow solution and update it as you required
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.PreparedStatement;
import static java.awt.Component.CENTER_ALIGNMENT;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.DriverManager;
import java.sql.ResultSet;
import javax.swing.AbstractButton;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JScrollBar;
import javax.swing.SwingConstants;
/**
*
* #author ultronhouse11
*/
public class mainPanel extends javax.swing.JPanel {
/**
* Creates new form mainPanel
*/
private JButton btnCategory;
final int col = 5;
final int rows = 2;
private Connection con;
private int pageIndex = 1;
public mainPanel() {
initComponents();
// open mysql connectivity
openConnection();
// load first page initialy
loadPage(pageIndex);
}
private void openConnection(){
try{
Class.forName("com.mysql.jdbc.Driver");
con = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/shopingmoll", "root", "qwer9900");
} catch(Exception e){
e.printStackTrace();
}
}
private void loadPage(int page) {
this.pageIndex = page;
try {
// Customize page size here
int pageSize = 10;
String sl = "SELECT * FROM `item_types` LIMIT ? OFFSET ?";
PreparedStatement pst = (PreparedStatement) con.prepareStatement(sl);
pst.setInt(0, pageSize);
pst.setInt(1, pageSize * page);
ResultSet rs = pst.executeQuery();
// remove all child elements
cat_panel.removeAll();
while (rs.next()) {
String a1 = rs.getString("name");
String a2 = rs.getString("id");
JButton btn = new JButton();
btn.setText("<html><body> <h3>" + a1 + "</h3><br> <b></body></html> ");
btn.setVerticalAlignment((int) CENTER_ALIGNMENT);
btn.applyComponentOrientation(getComponentOrientation());
btn.setFocusPainted(false);
btn.setFocusable(false);
btn.setRequestFocusEnabled(false);
btn.setMaximumSize(new Dimension(110, 90));
btn.setPreferredSize(new Dimension(90, 80));
btn.setMinimumSize(new Dimension(110, 90));
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println(a1+":"+a2);
}
});
//String a2 = rs.getString(2);
ImageIcon img = new ImageIcon("src/posresturent/cat.jpg");
// btn.setIcon(img);
btn.setHorizontalAlignment(SwingConstants.CENTER);
btn.setHorizontalTextPosition(AbstractButton.CENTER);
btn.setVerticalTextPosition(AbstractButton.BOTTOM);
cat_panel.add(btn,"center");
cat_panel.repaint();
cat_panel.revalidate();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jTabbedPane1 = new javax.swing.JTabbedPane();
jPanel2 = new javax.swing.JPanel();
sch = new javax.swing.JScrollPane();
jPanel9 = new javax.swing.JPanel();
jPanel11 = new javax.swing.JPanel();
textFieldRectBackground1 = new org.edisoncor.gui.textField.TextFieldRectBackground();
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jTextField3 = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
jPanel10 = new javax.swing.JPanel();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jButton7 = new javax.swing.JButton();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton10 = new javax.swing.JButton();
cat_panel = new javax.swing.JPanel();
jPanel5 = new javax.swing.JPanel();
jButton14 = new javax.swing.JButton();
jButton15 = new javax.swing.JButton();
jPanel6 = new javax.swing.JPanel();
jButton22 = new javax.swing.JButton();
jButton23 = new javax.swing.JButton();
jButton24 = new javax.swing.JButton();
jButton25 = new javax.swing.JButton();
jButton26 = new javax.swing.JButton();
jButton27 = new javax.swing.JButton();
jPanel3 = new javax.swing.JPanel();
jPanel1 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton11 = new javax.swing.JButton();
jButton12 = new javax.swing.JButton();
jButton13 = new javax.swing.JButton();
sch.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Items", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION));
jPanel11.setLayout(new java.awt.GridLayout(1, 0));
textFieldRectBackground1.setDescripcion("Enter Barcode ...");
textFieldRectBackground1.setFocusCycleRoot(true);
jPanel11.add(textFieldRectBackground1);
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"#SrNo", "Product", "Unit", "Rate"
}
));
jTable1.setRowHeight(35);
jScrollPane1.setViewportView(jTable1);
jLabel1.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
jLabel1.setText("Total ");
jLabel2.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
jLabel2.setText("Tax");
jTextField1.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
jTextField1.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
jTextField1.setText("0.00");
jTextField2.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
jTextField2.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
jTextField2.setText("0.00");
jTextField3.setFont(new java.awt.Font("Arial Black", 1, 45)); // NOI18N
jTextField3.setForeground(new java.awt.Color(51, 51, 51));
jTextField3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
jTextField3.setText(" Rs 0.00");
jLabel3.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
jLabel3.setText("<html> Grand <br><br> Total");
javax.swing.GroupLayout jPanel9Layout = new javax.swing.GroupLayout(jPanel9);
jPanel9.setLayout(jPanel9Layout);
jPanel9Layout.setHorizontalGroup(
jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel11, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel9Layout.createSequentialGroup()
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel1)
.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(35, 35, 35)
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jTextField3, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 230, Short.MAX_VALUE)
.addComponent(jTextField1, javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jTextField2, javax.swing.GroupLayout.Alignment.TRAILING))
.addGap(0, 0, Short.MAX_VALUE))
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 309, javax.swing.GroupLayout.PREFERRED_SIZE)
);
jPanel9Layout.setVerticalGroup(
jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel9Layout.createSequentialGroup()
.addComponent(jPanel11, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(1, 1, 1)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 0, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel9Layout.createSequentialGroup()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(7, 7, 7))
.addGroup(jPanel9Layout.createSequentialGroup()
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))
.addGroup(jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 69, javax.swing.GroupLayout.PREFERRED_SIZE)))
);
jPanel10.setLayout(new java.awt.GridLayout(7, 0, 0, 3));
jButton4.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/add_shopping_cart_40px.png"))); // NOI18N
jPanel10.add(jButton4);
jButton5.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/up.png"))); // NOI18N
jPanel10.add(jButton5);
jButton6.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/minus.png"))); // NOI18N
jPanel10.add(jButton6);
jButton7.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/add_user.png"))); // NOI18N
jPanel10.add(jButton7);
jButton8.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/delete.png"))); // NOI18N
jPanel10.add(jButton8);
jButton9.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/edit_30px.png"))); // NOI18N
jPanel10.add(jButton9);
jButton10.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/down.png"))); // NOI18N
jPanel10.add(jButton10);
cat_panel.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Category", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Tahoma", 0, 11), new java.awt.Color(51, 51, 51))); // NOI18N
cat_panel.setLayout(new java.awt.GridLayout(0, 1, 3, 5));
jPanel5.setLayout(new java.awt.GridLayout(1, 2, 2, 0));
jButton14.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/previous.png"))); // NOI18N
jButton14.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
jButton14.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton14ActionPerformed(evt);
}
});
jPanel5.add(jButton14);
jButton15.setIcon(new javax.swing.ImageIcon(getClass().getResource("/icons/next_32.png"))); // NOI18N
jButton15.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
jButton15.setHorizontalTextPosition(javax.swing.SwingConstants.RIGHT);
jButton15.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton15ActionPerformed(evt);
}
});
jPanel5.add(jButton15);
jPanel6.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Groups", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Tahoma", 0, 11), new java.awt.Color(51, 51, 51))); // NOI18N
jPanel6.setLayout(new java.awt.GridLayout(1, 6, 3, 0));
jButton22.setText("jButton22");
jPanel6.add(jButton22);
jButton23.setText("jButton23");
jPanel6.add(jButton23);
jButton24.setText("jButton23");
jPanel6.add(jButton24);
jButton25.setText("jButton22");
jPanel6.add(jButton25);
jButton26.setText("jButton23");
jPanel6.add(jButton26);
jButton27.setText("jButton22");
jPanel6.add(jButton27);
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addComponent(jPanel9, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel10, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(sch)
.addComponent(jPanel6, javax.swing.GroupLayout.DEFAULT_SIZE, 658, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, 124, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cat_panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(2, 2, 2))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel10, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel9, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(cat_panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jPanel6, javax.swing.GroupLayout.PREFERRED_SIZE, 52, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, 0)
.addComponent(sch))
);
jTabbedPane1.addTab("ADD STOCK", jPanel2);
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 1177, Short.MAX_VALUE)
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 513, Short.MAX_VALUE)
);
jTabbedPane1.addTab("ADD ACCOUNTS", jPanel3);
jPanel1.setLayout(new java.awt.GridLayout(1, 6, 4, 0));
jButton1.setText("Add New Stocks");
jPanel1.add(jButton1);
jButton2.setText("Add Category");
jPanel1.add(jButton2);
jButton3.setText("Modification Stock");
jPanel1.add(jButton3);
jButton11.setText("Add Groups");
jPanel1.add(jButton11);
jPanel1.add(jButton12);
jPanel1.add(jButton13);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jTabbedPane1)
.addContainerGap())
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(1, 1, 1)
.addComponent(jTabbedPane1))
);
}// </editor-fold>
private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {
// next button
loadPage(pageIndex+1);
}
private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {
// previous button
loadPage(pageIndex-1);
}
// Variables declaration - do not modify
private javax.swing.JPanel cat_panel;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton10;
private javax.swing.JButton jButton11;
private javax.swing.JButton jButton12;
private javax.swing.JButton jButton13;
private javax.swing.JButton jButton14;
private javax.swing.JButton jButton15;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton22;
private javax.swing.JButton jButton23;
private javax.swing.JButton jButton24;
private javax.swing.JButton jButton25;
private javax.swing.JButton jButton26;
private javax.swing.JButton jButton27;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JButton jButton6;
private javax.swing.JButton jButton7;
private javax.swing.JButton jButton8;
private javax.swing.JButton jButton9;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel10;
private javax.swing.JPanel jPanel11;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel5;
private javax.swing.JPanel jPanel6;
private javax.swing.JPanel jPanel9;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTabbedPane jTabbedPane1;
private javax.swing.JTable jTable1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
private javax.swing.JScrollPane sch;
private org.edisoncor.gui.textField.TextFieldRectBackground textFieldRectBackground1;
// End of variables declaration
}
Previous Button Event Code when press button console error
loadPage(pageIndex + 1);
System.out.println(String.valueOf(pageIndex - 1));
Previous Button after press console error.
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-4' at line 1
0
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6539)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at

Rdf and java gui

I have a job to do and I want to display results from this program in my GUI but I just can not do it, then I want a method for allowing me to see the results of this program in my graph inetreface, so I created an interface and I reserved a button displays and an area for display (JTextArea), it means when I click on button shows me it shows the results (the contents of my Rdf file). I want your help if possible and thank you in advance
Model model = ModelFactory.createDefaultModel();
// use the FileManager to find the input file
InputStream in = (InputStream) FileManager.get().open("C:/Users/SAMSUNG/Desktop/WICM2/projet/opus_august2007.rdf");
if (in == null) {
throw new IllegalArgumentException(
"File: " + "C:/Users/SAMSUNG/Desktop/WICM2/projet/opus_august2007.rdf"+ " not found");
}
// read the RDF/XML file
model.read(in, "");
// write it to standard out
//model.write(System.out);
model.write(System.out);
and here's my program interface
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.NodeIterator;
import com.hp.hpl.jena.rdf.model.Statement;
import com.hp.hpl.jena.rdf.model.StmtIterator;
import com.hp.hpl.jena.util.FileManager;
/**
*
* #author SAMSUNG
*/
public class frameFinal extends javax.swing.JFrame {
/**
* Creates new form FrameFinal
*/
public frameFinal() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
jTabbedPane1 = new javax.swing.JTabbedPane();
jPanel1 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jTextField3 = new javax.swing.JTextField();
jPanel3 = new javax.swing.JPanel();
jTextArea2 = new javax.swing.JTextArea();
jButton3 = new javax.swing.JButton();
jPanel4 = new javax.swing.JPanel();
jButton4 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jScrollPane2 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Rdf & taxonomie");
jPanel1.setBackground(new java.awt.Color(204, 204, 255));
jButton1.setText("PARCOURIR");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jTextField3.setBackground(new java.awt.Color(204, 204, 204));
jTextField3.setEnabled(false);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap(53, Short.MAX_VALUE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 327, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jButton1)
.addGap(79, 79, 79))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(120, 120, 120)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(157, Short.MAX_VALUE))
);
jTabbedPane1.addTab("Chargement File", jPanel1);
jButton3.setText("Visualise");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
jTabbedPane1.addTab("Visualiser", jPanel3);
jButton4.setText("Generer");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);
jTextArea2.setColumns(20);
jTextArea2.setRows(5);
jScrollPane2.setViewportView(jTextArea2);
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel3Layout.createSequentialGroup()
.addContainerGap(477, Short.MAX_VALUE)
.addComponent(jButton3)
.addGap(20, 20, 20))
.addComponent(jScrollPane2)
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 271, Short.MAX_VALUE)
.addGap(18, 18, 18)
.addComponent(jButton3))
);
javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
jPanel4.setLayout(jPanel4Layout);
jPanel4Layout.setHorizontalGroup(
jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel4Layout.createSequentialGroup()
.addGap(0, 489, Short.MAX_VALUE)
.addComponent(jButton4)
.addContainerGap())
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 570, Short.MAX_VALUE)
);
jPanel4Layout.setVerticalGroup(
jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel4Layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 246, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jButton4)
.addGap(0, 25, Short.MAX_VALUE))
);
jTabbedPane1.addTab("Taxonomie", jPanel4);
jMenu1.setText("File");
jMenuBar1.add(jMenu1);
jMenu2.setText("Edit");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jTabbedPane1, javax.swing.GroupLayout.Alignment.TRAILING)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jTabbedPane1)
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
JFileChooser fileChooser = new JFileChooser();
fileChooser.setCurrentDirectory(new java.io.File("C:\\Users\\SAMSUNG\\Desktop\\WICM2\\projet"));
fileChooser.setFileFilter(new FileNameExtensionFilter("RDF Definitions", "rdf", "RDF"));
int returnVal = fileChooser.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
this.jTextField3.setText(fileChooser.getSelectedFile().getPath());
}//GEN-LAST:event_jButton1ActionPerformed
}
private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextField1ActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_jTextField1ActionPerformed
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton4ActionPerformed
jTextArea1.setText("");
Model model = ModelFactory.createDefaultModel();
InputStream in = FileManager.get().open("C:/Users/SAMSUNG/Desktop/WICM2/projet/opus_august2007.rdf");
Model m = model.read(in,null);
NodeIterator nit = m.listObjects();
List<String> lclass = new ArrayList<>();
Map<String,List<String>> map = new HashMap<>();
StmtIterator si = m.listStatements();
while(si.hasNext()){
Statement statement = si.next();
if(statement.getPredicate().getLocalName().equalsIgnoreCase("subClassOf")){
String mere = statement.getObject().toString();
String fils = statement.getSubject().getLocalName();
if(map.containsKey(mere)){
List<String> l = map.get(mere);
l.add(fils);
map.replace(mere, l);
}else{
List<String> l = new ArrayList<>();
l.add(fils);
map.put(mere, l);
}
}
if(statement.getObject().isResource() && statement.getPredicate().getLocalName().equalsIgnoreCase("type")){
if(!lclass.contains(statement.getSubject().getLocalName())){
lclass.add(statement.getSubject().getLocalName()) ;
}
}
}
jTextArea1.append("Les classes:\n");
for(String classe:lclass){
jTextArea1.append(classe+"\n");
}
jTextArea1.append("Les classe et les sous classes:\n");
for(String l : map.keySet()){
jTextArea1.append("Classe mere : "+l+"\n");
for(String s:map.get(l)){
jTextArea1.append(" Classe fils:"+s+"\n");
}
}
}//GEN-LAST:event_jButton4ActionPerformed
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
/*jTextArea2.setText("");
Model model = ModelFactory.createDefaultModel();
// use the FileManager to find the input file
InputStream in = FileManager.get().open("C:/Users/SAMSUNG/Desktop/WICM2/projet/opus_august2007.rdf");
// DataInputStrean st = new DataInputStream() ;
if (in == null) {
throw new IllegalArgumentException(
"File: " + "C:/Users/SAMSUNG/Desktop/WICM2/projet/opus_august2007.rdf"+ " not found");
}
// read the RDF/XML file
model.read(in, "");
// write it to standard out
//model.write(System.out);
model.write(System.out);*/
}
/**
* #param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(frameFinal.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(frameFinal.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(frameFinal.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(frameFinal.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new frameFinal().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel4;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTabbedPane jTabbedPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextArea jTextArea2;
private javax.swing.JTextField jTextField3;
// End of variables declaration//GEN-END:variables
}

If I understand you want to display entire RDF file in a text area. So if it's that what you want, you just need to read it in using a reader something like...
try{
FileReader f = new FileReader("c:\\opus_august2007.rdf");
BufferedReader b = new BufferedReader(f);
boolean eof = false;
while(! eof)
{
String lineIn = b.readLine();
if(lineIn == null)
{
eof = true;
}
else
{
mytxtarea.append(lineIn + System.getProperty("line.separator"));
}
}
}catch(Exception e){
e.printStackTrace();
}

Java Netbeans For loop error: cannot find symbol class, <identifier> expected?

I'm making a hangman game and this is my current code:
//Declaring the array
String [] WordList = {"anonymous", "tolerate", "appreciation", "commissioner", "harm", "flexibility", "instructional", "scramble", "casino", "tumor"};
// Getting a random word for the game
int num = ((int)Math.ceil(Math.random()*(WordList.length)));
String word = WordList[num];
// The puzzle to be displayed for the user to guess
int letters = word.length();
String hiddenWord = "";
for (int i=0; i<letters; i++){
hiddenWord+="-";
}
At the for loop, I get an error saying 'illegal start of type, cannot find symbol: class i'. 'i' is supposed to be an integer, which I've already declared, so I'm not sure why it's asking for a class.
There's also another error saying, 'identifier expected' and that there's a missing >. As my < is meant to be used as comparison (and not as a declaration or identifier), I don't understand this error.
For clarification, I should add that this is a desktop application in netbeans. The code is located after the line:
public class HangmanGameView extends FrameView {
Most of the rest of my code will be located within the actionPerformed code for my buttons. I need to be able to access the word and hiddenWord variables from within the code for the buttons, which is why I've put them here. I'm not positive if that's the problem as of yet. I'm also not sure where to put the code otherwise; there is no main method as far as I can see.
Edit: I hadn't posted the complete code because this is all I've done for now; the rest is all auto-generated by NetBeans, and I thought it wouldn't be relevant. But here it is:
/*
* HangmanGameView.java
*/
package hangmangame;
import org.jdesktop.application.Action;
import org.jdesktop.application.ResourceMap;
import org.jdesktop.application.SingleFrameApplication;
import org.jdesktop.application.FrameView;
import org.jdesktop.application.TaskMonitor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Timer;
import javax.swing.Icon;
import javax.swing.JDialog;
import javax.swing.JFrame;
/**
* The application's main frame.
*/
public class HangmanGameView extends FrameView {
//Declaring the array
String [] WordList = {"anonymous", "tolerate", "appreciation", "commissioner", "harm", "flexibility", "instructional", "scramble", "casino", "tumor"};
// Getting a random word for the game
int num = ((int)Math.ceil(Math.random()*(WordList.length)));
String word = WordList[num];
// The puzzle to be displayed for the user to guess
int letters = word.length();
String hiddenWord = "";
for (int i=0; i<letters; i++){
hiddenWord+="-";
}
public HangmanGameView(SingleFrameApplication app) {
super(app);
initComponents();
// status bar initialization - message timeout, idle icon and busy animation, etc
ResourceMap resourceMap = getResourceMap();
int messageTimeout = resourceMap.getInteger("StatusBar.messageTimeout");
messageTimer = new Timer(messageTimeout, new ActionListener() {
public void actionPerformed(ActionEvent e) {
statusMessageLabel.setText("");
}
});
messageTimer.setRepeats(false);
int busyAnimationRate = resourceMap.getInteger("StatusBar.busyAnimationRate");
for (int i = 0; i < busyIcons.length; i++) {
busyIcons[i] = resourceMap.getIcon("StatusBar.busyIcons[" + i + "]");
}
busyIconTimer = new Timer(busyAnimationRate, new ActionListener() {
public void actionPerformed(ActionEvent e) {
busyIconIndex = (busyIconIndex + 1) % busyIcons.length;
statusAnimationLabel.setIcon(busyIcons[busyIconIndex]);
}
});
idleIcon = resourceMap.getIcon("StatusBar.idleIcon");
statusAnimationLabel.setIcon(idleIcon);
progressBar.setVisible(false);
// connecting action tasks to status bar via TaskMonitor
TaskMonitor taskMonitor = new TaskMonitor(getApplication().getContext());
taskMonitor.addPropertyChangeListener(new java.beans.PropertyChangeListener() {
public void propertyChange(java.beans.PropertyChangeEvent evt) {
String propertyName = evt.getPropertyName();
if ("started".equals(propertyName)) {
if (!busyIconTimer.isRunning()) {
statusAnimationLabel.setIcon(busyIcons[0]);
busyIconIndex = 0;
busyIconTimer.start();
}
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
} else if ("done".equals(propertyName)) {
busyIconTimer.stop();
statusAnimationLabel.setIcon(idleIcon);
progressBar.setVisible(false);
progressBar.setValue(0);
} else if ("message".equals(propertyName)) {
String text = (String)(evt.getNewValue());
statusMessageLabel.setText((text == null) ? "" : text);
messageTimer.restart();
} else if ("progress".equals(propertyName)) {
int value = (Integer)(evt.getNewValue());
progressBar.setVisible(true);
progressBar.setIndeterminate(false);
progressBar.setValue(value);
}
}
});
}
#Action
public void showAboutBox() {
if (aboutBox == null) {
JFrame mainFrame = HangmanGameApp.getApplication().getMainFrame();
aboutBox = new HangmanGameAboutBox(mainFrame);
aboutBox.setLocationRelativeTo(mainFrame);
}
HangmanGameApp.getApplication().show(aboutBox);
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
mainPanel = new javax.swing.JPanel();
titleLabel = new javax.swing.JLabel();
startButton = new javax.swing.JButton();
guesswordOutput = new javax.swing.JLabel();
guessLabel = new javax.swing.JLabel();
guessInput = new javax.swing.JTextField();
guessButton = new javax.swing.JButton();
picLabel = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
gameOutput = new javax.swing.JTextArea();
menuBar = new javax.swing.JMenuBar();
javax.swing.JMenu fileMenu = new javax.swing.JMenu();
javax.swing.JMenuItem exitMenuItem = new javax.swing.JMenuItem();
javax.swing.JMenu helpMenu = new javax.swing.JMenu();
javax.swing.JMenuItem aboutMenuItem = new javax.swing.JMenuItem();
statusPanel = new javax.swing.JPanel();
javax.swing.JSeparator statusPanelSeparator = new javax.swing.JSeparator();
statusMessageLabel = new javax.swing.JLabel();
statusAnimationLabel = new javax.swing.JLabel();
progressBar = new javax.swing.JProgressBar();
org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(hangmangame.HangmanGameApp.class).getContext().getResourceMap(HangmanGameView.class);
mainPanel.setBackground(resourceMap.getColor("mainPanel.background")); // NOI18N
mainPanel.setName("mainPanel"); // NOI18N
titleLabel.setFont(titleLabel.getFont().deriveFont(titleLabel.getFont().getSize()+19f));
titleLabel.setForeground(resourceMap.getColor("titleLabel.foreground")); // NOI18N
titleLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
titleLabel.setText(resourceMap.getString("titleLabel.text")); // NOI18N
titleLabel.setName("titleLabel"); // NOI18N
startButton.setFont(startButton.getFont().deriveFont(startButton.getFont().getStyle() & ~java.awt.Font.BOLD, startButton.getFont().getSize()+5));
startButton.setForeground(resourceMap.getColor("startButton.foreground")); // NOI18N
startButton.setText(resourceMap.getString("startButton.text")); // NOI18N
startButton.setToolTipText(resourceMap.getString("startButton.toolTipText")); // NOI18N
startButton.setName("startButton"); // NOI18N
startButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
startButtonActionPerformed(evt);
}
});
guesswordOutput.setText(resourceMap.getString("guesswordOutput.text")); // NOI18N
guesswordOutput.setName("guesswordOutput"); // NOI18N
guessLabel.setFont(resourceMap.getFont("guessLabel.font")); // NOI18N
guessLabel.setText(resourceMap.getString("guessLabel.text")); // NOI18N
guessLabel.setName("guessLabel"); // NOI18N
guessInput.setBackground(resourceMap.getColor("guessInput.background")); // NOI18N
guessInput.setFont(resourceMap.getFont("guessInput.font")); // NOI18N
guessInput.setText(resourceMap.getString("guessInput.text")); // NOI18N
guessInput.setToolTipText(resourceMap.getString("guessInput.toolTipText")); // NOI18N
guessInput.setName("guessInput"); // NOI18N
guessButton.setFont(resourceMap.getFont("guessButton.font")); // NOI18N
guessButton.setForeground(resourceMap.getColor("guessButton.foreground")); // NOI18N
guessButton.setText(resourceMap.getString("guessButton.text")); // NOI18N
guessButton.setName("guessButton"); // NOI18N
guessButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
guessButtonActionPerformed(evt);
}
});
picLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
picLabel.setIcon(resourceMap.getIcon("picLabel.icon")); // NOI18N
picLabel.setText(resourceMap.getString("picLabel.text")); // NOI18N
picLabel.setName("picLabel"); // NOI18N
jScrollPane1.setName("jScrollPane1"); // NOI18N
gameOutput.setBackground(resourceMap.getColor("gameOutput.background")); // NOI18N
gameOutput.setColumns(20);
gameOutput.setRows(5);
gameOutput.setName("gameOutput"); // NOI18N
jScrollPane1.setViewportView(gameOutput);
javax.swing.GroupLayout mainPanelLayout = new javax.swing.GroupLayout(mainPanel);
mainPanel.setLayout(mainPanelLayout);
mainPanelLayout.setHorizontalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(titleLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 485, Short.MAX_VALUE)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(42, 42, 42)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(mainPanelLayout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(picLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 150, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(mainPanelLayout.createSequentialGroup()
.addComponent(guessLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 182, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(guessInput, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(46, 46, 46)
.addComponent(guessButton)))
.addContainerGap(55, Short.MAX_VALUE))
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(181, 181, 181)
.addComponent(startButton, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(189, Short.MAX_VALUE))
.addComponent(guesswordOutput, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 485, Short.MAX_VALUE)
);
mainPanelLayout.setVerticalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(21, 21, 21)
.addComponent(titleLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(startButton, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(26, 26, 26)
.addComponent(guesswordOutput, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(38, 38, 38)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(guessLabel)
.addComponent(guessButton)
.addComponent(guessInput, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 45, Short.MAX_VALUE)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jScrollPane1)
.addComponent(picLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 200, Short.MAX_VALUE))
.addGap(39, 39, 39))
);
menuBar.setName("menuBar"); // NOI18N
fileMenu.setText(resourceMap.getString("fileMenu.text")); // NOI18N
fileMenu.setName("fileMenu"); // NOI18N
javax.swing.ActionMap actionMap = org.jdesktop.application.Application.getInstance(hangmangame.HangmanGameApp.class).getContext().getActionMap(HangmanGameView.class, this);
exitMenuItem.setAction(actionMap.get("quit")); // NOI18N
exitMenuItem.setName("exitMenuItem"); // NOI18N
fileMenu.add(exitMenuItem);
menuBar.add(fileMenu);
helpMenu.setText(resourceMap.getString("helpMenu.text")); // NOI18N
helpMenu.setName("helpMenu"); // NOI18N
aboutMenuItem.setAction(actionMap.get("showAboutBox")); // NOI18N
aboutMenuItem.setName("aboutMenuItem"); // NOI18N
helpMenu.add(aboutMenuItem);
menuBar.add(helpMenu);
statusPanel.setName("statusPanel"); // NOI18N
statusPanelSeparator.setName("statusPanelSeparator"); // NOI18N
statusMessageLabel.setName("statusMessageLabel"); // NOI18N
statusAnimationLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
statusAnimationLabel.setName("statusAnimationLabel"); // NOI18N
progressBar.setName("progressBar"); // NOI18N
javax.swing.GroupLayout statusPanelLayout = new javax.swing.GroupLayout(statusPanel);
statusPanel.setLayout(statusPanelLayout);
statusPanelLayout.setHorizontalGroup(
statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(statusPanelSeparator, javax.swing.GroupLayout.DEFAULT_SIZE, 485, Short.MAX_VALUE)
.addGroup(statusPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(statusMessageLabel)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 315, Short.MAX_VALUE)
.addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(statusAnimationLabel)
.addContainerGap())
);
statusPanelLayout.setVerticalGroup(
statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addComponent(statusPanelSeparator, javax.swing.GroupLayout.PREFERRED_SIZE, 2, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(statusMessageLabel)
.addComponent(statusAnimationLabel)
.addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(3, 3, 3))
);
setComponent(mainPanel);
setMenuBar(menuBar);
setStatusBar(statusPanel);
}// </editor-fold>
private void startButtonActionPerformed(java.awt.event.ActionEvent evt) {
// Initializes the game and displays the empty word for the player
}
private void guessButtonActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
// Variables declaration - do not modify
private javax.swing.JTextArea gameOutput;
private javax.swing.JButton guessButton;
private javax.swing.JTextField guessInput;
private javax.swing.JLabel guessLabel;
private javax.swing.JLabel guesswordOutput;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JPanel mainPanel;
private javax.swing.JMenuBar menuBar;
private javax.swing.JLabel picLabel;
private javax.swing.JProgressBar progressBar;
private javax.swing.JButton startButton;
private javax.swing.JLabel statusAnimationLabel;
private javax.swing.JLabel statusMessageLabel;
private javax.swing.JPanel statusPanel;
private javax.swing.JLabel titleLabel;
// End of variables declaration
private final Timer messageTimer;
private final Timer busyIconTimer;
private final Icon idleIcon;
private final Icon[] busyIcons = new Icon[15];
private int busyIconIndex = 0;
private JDialog aboutBox;
}
Final Edit:
I moved my for loop to inside the start button code - leaving the initial declaration of the hiddenWord string at the beginning - and it's working fine now. Thanks for the help!

create JPanel after click the button /Java

I have a problem with my project. I would like to create new Panel in my Frame after click the button. Here's a part of a code:
private class ComponentListener implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(newGameItem))
{
System.out.println("dasda");
gamePanel = new GamePanel();
cont.add(gamePanel);
}
if (e.getSource().equals(stopItem)) {
gamePanel.stopGame();
}
}
}
GamePanel gamePanel;
Container cont = this.getContentPane();
When I click the button I see the text in console, also when I'm starting project already with this Panel everything is okay.
I guess this problem is simple but I can't figure out what's going on :( .
I see "dasda" so it means that method actionPerformed works correctly.
miniwolf where should I invoke repaint? In actionPerformed?

Okay, I found a solution. I should have added gamePanel.revalidate() in actionPerformed. Thanks for your help

I have to refresh this topic, cause I have a problem with change JPanel in JFrame form.
When I click the button I want to change a panel but I can't see it, but when I create JFrame (java class) and write code by myself everything's okay.
This is a code from JFrame (java class) made by me.
public class main extends JFrame
{
public main()
{
frameSettings();
this.getContentPane().add(panel1);
panel1.add(button);
panel1.setBackground(Color.red);
button.addActionListener(new ActionListener(){
#Override
public void actionPerformed(ActionEvent e)
{
gamePanel = new GamePanel();
container.add(gamePanel);
gamePanel.startGame();
gamePanel.revalidate();
gamePanel.requestFocus();
}
});
}
private void frameSettings() {
int szer = Toolkit.getDefaultToolkit().getScreenSize().width;
int wys = Toolkit.getDefaultToolkit().getScreenSize().height;
this.setTitle("Pong");
this.setSize(700, 600);
this.setResizable(false);
int szerRamki = this.getSize().width;
int wysRamki = this.getSize().height;
this.setDefaultCloseOperation(3);
this.setLocation((szer - szerRamki) / 2, (wys - wysRamki) / 2);
}
JPanel panel1 = new JPanel();
JButton button = new JButton();
GamePanel gamePanel;
Container container = this.getContentPane();
public static void main(String args[])
{
java.awt.EventQueue.invokeLater(new Runnable()
{
#Override
public void run()
{
new main().setVisible(true);
}
});
}
}
And this is a code from JFrame form
public class MainFrame extends javax.swing.JFrame
{
/**
* Creates new form MainFrame
*/
public MainFrame()
{
initComponents();
frameSettings();
}
private void frameSettings()
{
int szer = Toolkit.getDefaultToolkit().getScreenSize().width;
int wys = Toolkit.getDefaultToolkit().getScreenSize().height;
this.setTitle("Pong");
this.setSize(700, 600);
this.setResizable(false);
int szerRamki = this.getSize().width;
int wysRamki = this.getSize().height;
this.setDefaultCloseOperation(3);
this.setLocation((szer - szerRamki) / 2, (wys - wysRamki) / 2);
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents()
{
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenuItem3 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1.setBackground(new java.awt.Color(0, 0, 0));
jLabel1.setFont(new java.awt.Font("Monospaced", 3, 160)); // NOI18N
jLabel1.setForeground(new java.awt.Color(51, 255, 255));
jLabel1.setText("Pong");
jLabel2.setFont(new java.awt.Font("Monospaced", 3, 48)); // NOI18N
jLabel2.setForeground(new java.awt.Color(102, 255, 0));
jLabel2.setText("Nowa Gra");
jLabel3.setFont(new java.awt.Font("Monospaced", 3, 48)); // NOI18N
jLabel3.setForeground(new java.awt.Color(102, 255, 0));
jLabel3.setText("Ranking");
jLabel4.setFont(new java.awt.Font("Monospaced", 3, 48)); // NOI18N
jLabel4.setForeground(new java.awt.Color(102, 255, 0));
jLabel4.setText("Wyjście");
jLabel5.setFont(new java.awt.Font("Monospaced", 3, 18)); // NOI18N
jLabel5.setForeground(new java.awt.Color(153, 255, 0));
jLabel5.setText("Najlepszy gracz:");
jButton1.setText("jButton1");
jButton1.addActionListener(new java.awt.event.ActionListener()
{
public void actionPerformed(java.awt.event.ActionEvent evt)
{
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(237, 237, 237)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel4)
.addComponent(jLabel3)))
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel5, javax.swing.GroupLayout.PREFERRED_SIZE, 302, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(227, 227, 227)
.addComponent(jLabel2)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(148, 148, 148)
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 131, Short.MAX_VALUE)
.addComponent(jButton1)
.addGap(102, 102, 102))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(57, 57, 57)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel1)
.addComponent(jButton1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel2)
.addGap(18, 18, 18)
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel5))
);
jMenu1.setText("File");
jMenuItem1.setText("Nowa Gra");
jMenu1.add(jMenuItem1);
jMenuItem2.setText("jMenuItem2");
jMenu1.add(jMenuItem2);
jMenuItem3.setText("jMenuItem3");
jMenu1.add(jMenuItem3);
jMenuBar1.add(jMenu1);
jMenu2.setText("Edit");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)
{
System.out.println("askdalk");
gamePanel = new GamePanel();
container.add(gamePanel);
gamePanel.startGame();
gamePanel.revalidate();
gamePanel.requestFocus();
}
/**
* #param args the command line arguments
*/
public static void main(String args[])
{
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try
{
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels())
{
if ("Nimbus".equals(info.getName()))
{
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex)
{
java.util.logging.Logger.getLogger(MainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex)
{
java.util.logging.Logger.getLogger(MainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex)
{
java.util.logging.Logger.getLogger(MainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex)
{
java.util.logging.Logger.getLogger(MainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable()
{
public void run()
{
new MainFrame().setVisible(true);
}
});
}
private Container container = this.getContentPane();
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JPanel jPanel1;
// End of variables declaration
private GamePanel gamePanel;
}

jLabel won't print from String

I'm trying to populate a jLabel with text from a global String in NetBeans, but every time I try to print anything other than a String literal, it prints nothing. I've tried directly printing the String, and my most recent attempt used a get() method.
Here's the code so far, I'm populating the label on line 73:
public class ChatWindow extends javax.swing.JFrame {
private Integer userID;
private String otherPerson = "";
/**
* Creates new form ChatWindow
* #param id
*/
public ChatWindow(int id) {
initComponents();
userID = id;
otherPerson = userID.toString();
this.setVisible(true);
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
otherPersonLabel = new javax.swing.JLabel();
menuBar = new javax.swing.JMenuBar();
fileMenu = new javax.swing.JMenu();
openMenuItem = new javax.swing.JMenuItem();
saveMenuItem = new javax.swing.JMenuItem();
saveAsMenuItem = new javax.swing.JMenuItem();
exitMenuItem = new javax.swing.JMenuItem();
editMenu = new javax.swing.JMenu();
cutMenuItem = new javax.swing.JMenuItem();
copyMenuItem = new javax.swing.JMenuItem();
pasteMenuItem = new javax.swing.JMenuItem();
deleteMenuItem = new javax.swing.JMenuItem();
helpMenu = new javax.swing.JMenu();
contentsMenuItem = new javax.swing.JMenuItem();
aboutMenuItem = new javax.swing.JMenuItem();
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
jTextArea1.setBackground(new java.awt.Color(248, 248, 248));
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jTextArea1.setText("ContactName: FloopyNoops\nYou: Yes, floopynoops");
jScrollPane1.setViewportView(jTextArea1);
jButton1.setText("Send");
jButton2.setText("Save");
jTextField1.setText("jTextField1");
otherPersonLabel.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
otherPersonLabel.setText(getLabelText());
fileMenu.setMnemonic('f');
fileMenu.setText("File");
openMenuItem.setMnemonic('o');
openMenuItem.setText("Open");
fileMenu.add(openMenuItem);
saveMenuItem.setMnemonic('s');
saveMenuItem.setText("Save");
fileMenu.add(saveMenuItem);
saveAsMenuItem.setMnemonic('a');
saveAsMenuItem.setText("Save As ...");
saveAsMenuItem.setDisplayedMnemonicIndex(5);
fileMenu.add(saveAsMenuItem);
exitMenuItem.setMnemonic('x');
exitMenuItem.setText("Exit");
exitMenuItem.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
exitMenuItemActionPerformed(evt);
}
});
fileMenu.add(exitMenuItem);
menuBar.add(fileMenu);
editMenu.setMnemonic('e');
editMenu.setText("Edit");
cutMenuItem.setMnemonic('t');
cutMenuItem.setText("Cut");
editMenu.add(cutMenuItem);
copyMenuItem.setMnemonic('y');
copyMenuItem.setText("Copy");
editMenu.add(copyMenuItem);
pasteMenuItem.setMnemonic('p');
pasteMenuItem.setText("Paste");
editMenu.add(pasteMenuItem);
deleteMenuItem.setMnemonic('d');
deleteMenuItem.setText("Delete");
editMenu.add(deleteMenuItem);
menuBar.add(editMenu);
helpMenu.setMnemonic('h');
helpMenu.setText("Help");
contentsMenuItem.setMnemonic('c');
contentsMenuItem.setText("Contents");
helpMenu.add(contentsMenuItem);
aboutMenuItem.setMnemonic('a');
aboutMenuItem.setText("About");
helpMenu.add(aboutMenuItem);
menuBar.add(helpMenu);
setJMenuBar(menuBar);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jTextField1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGroup(layout.createSequentialGroup()
.addComponent(otherPersonLabel)
.addGap(0, 0, Short.MAX_VALUE)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(5, 5, 5)
.addComponent(otherPersonLabel)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 202, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(6, 6, 6)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 64, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 28, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void exitMenuItemActionPerformed(java.awt.event.ActionEvent evt) {
this.dispose();
}
private String getLabelText(){
return otherPerson;
}
// Variables declaration - do not modify
private javax.swing.JMenuItem aboutMenuItem;
private javax.swing.JMenuItem contentsMenuItem;
private javax.swing.JMenuItem copyMenuItem;
private javax.swing.JMenuItem cutMenuItem;
private javax.swing.JMenuItem deleteMenuItem;
private javax.swing.JMenu editMenu;
private javax.swing.JMenuItem exitMenuItem;
private javax.swing.JMenu fileMenu;
private javax.swing.JMenu helpMenu;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
private javax.swing.JMenuBar menuBar;
private javax.swing.JMenuItem openMenuItem;
private javax.swing.JLabel otherPersonLabel;
private javax.swing.JMenuItem pasteMenuItem;
private javax.swing.JMenuItem saveAsMenuItem;
private javax.swing.JMenuItem saveMenuItem;
// End of variables declaration
}

I believe the constructor is your issue.
public ChatWindow(int id) {
initComponents(); //otherPerson = "";
userID = id;
otherPerson = userID.toString(); //otherPerson = id;
this.setVisible(true);
}
You initialize the component before otherPerson is set. Move initComponents after setting otherPerson and it should work again.

You are calling "initcomponent" first and then initializing "otherPerson" class member. Do it like this:
public ChatWindow(int id)
{
userID = id;
otherPerson = userID.toString();
initComponents();
this.setVisible(true);
}

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Getting Exception connecting Yahoo server - java

http://jymsg9.sourceforge.net/docs/ymsg/network/Session.html This will help u..

Related

How to make paginations buttons (Next, Previous) that load button values from database?

Rdf and java gui

Java Netbeans For loop error: cannot find symbol class, <identifier> expected?

create JPanel after click the button /Java

jLabel won't print from String

Categories

Resources