I have created a design of my application with net beans programme . I would like to add a 30*30 grid layout something similar to sudoku .Actually I am trying to draw a 30*30 of squares for map. However , I am not able to add that view to my code .I have searched lots of places but I am not able to find an answer .I am open to your ideas. Could anyone help me in this subject please ? Thank you !
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.GridLayout;
import javax.swing.JTextField;
public class NewJFrame extends javax.swing.JFrame {
/**
* Creates new form NewJFrame
*/
public NewJFrame() {
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">
private void initComponents() {
getDirectionButton = new javax.swing.JButton();
questionTitle = new java.awt.Label();
questionText = new javax.swing.JTextField();
jScrollPane1 = new javax.swing.JScrollPane();
directionDescriptionArea = new javax.swing.JTextArea();
walkingManButton = new javax.swing.JButton();
java.awt.Panel mapPanel = new java.awt.Panel();
jButton1 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("DSL For Streets\n");
setPreferredSize(new java.awt.Dimension(1365, 730));
getDirectionButton.setText("Get Direction");
questionTitle.setFont(new java.awt.Font("Dialog", 3, 12)); // NOI18N
questionTitle.setText("Please enter your question");
directionDescriptionArea.setColumns(20);
directionDescriptionArea.setRows(5);
jScrollPane1.setViewportView(directionDescriptionArea);
walkingManButton.setFont(new java.awt.Font("Tahoma", 3, 11)); // NOI18N
walkingManButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("walk.png"))); // NOI18N
walkingManButton.setText("Get Suggested Route");
walkingManButton.setFocusable(false);
jButton1.setIcon(new javax.swing.ImageIcon(getClass().getResource("map.png"))); // NOI18N
cells = new int[ROWS][COLS];
tfCells = new JTextField[ROWS][COLS]; // allocate JTextField array
// Container cp = getContentPane();
//cp.setLayout(new GridLayout(ROWS, COLS));
mapPanel.setLayout(new GridLayout(ROWS, COLS));
// Create 9x9 JTextFields and place on the GridLayout
for (int row = 0; row < ROWS; row++) {
for (int col = 0; col < COLS; col++) {
tfCells[row][col] = new JTextField(); // allocate element of array
mapPanel. add(tfCells[row][col]); // ContentPane adds JTextField
int number = puzzle[row][col];
tfCells[row][col].setText(""); // empty
tfCells[row][col].setHorizontalAlignment(JTextField.CENTER);
tfCells[row][col].setFont(new Font("Monospaced", Font.BOLD, 20));
}
}
javax.swing.GroupLayout mapPanelLayout = new javax.swing.GroupLayout(mapPanel);
mapPanel.setLayout(mapPanelLayout);
mapPanelLayout.setHorizontalGroup(
mapPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mapPanelLayout.createSequentialGroup()
.addGap(181, 181, 181)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 172, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(239, Short.MAX_VALUE))
.addGroup(mapPanelLayout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(36, 36, 36)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(getDirectionButton, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(questionTitle, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 177, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(questionText, javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1)
.addComponent(walkingManButton, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 451, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(mapPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(46, 46, 46))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(39, 39, 39)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(questionTitle, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(questionText, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(getDirectionButton, javax.swing.GroupLayout.PREFERRED_SIZE, 31, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(25, 25, 25)
.addComponent(walkingManButton, javax.swing.GroupLayout.PREFERRED_SIZE, 48, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 359, Short.MAX_VALUE))
.addComponent(mapPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
);
pack();
}// </editor-fold>
/**
* #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(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.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 NewJFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JTextArea directionDescriptionArea;
private javax.swing.JButton getDirectionButton;
private javax.swing.JButton jButton1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField jTextField3;
private javax.swing.JTextField questionText;
private java.awt.Label questionTitle;
private javax.swing.JButton walkingManButton;
private javax.swing.JTextField a[]=new JTextField[30];
// End of variables declaration
public static final int ROWS = 9; // ROWS by COLS cells
public static final int COLS = 9;
public static final int CELL_SIZE = 10; // Cell width/height
public static final int CANVAS_WIDTH = CELL_SIZE * COLS;
public static final int CANVAS_HEIGHT = CELL_SIZE * ROWS;
private int[][] cells;
private JTextField[][] tfCells;
private int[][] puzzle =new int[9][9];
}
If you're using Netbeans, you can do that with the GUI Builder. Simply go to the Design View, right click on the underlying container you're going to use for this (some JPanel), go to "Set Layout" option in the context menu and pick "Grid Layout". To edit its properties, go to the Navigator window (usually on the left), browse your components until you see the container in question, collapse it and select the GridLayout. You can now change some properties, like the rows and columns, on the properties window (usually on the right). Then, you drag other components on top of that container.
Though, by your description, I wonder if what you're really looking for is a JTable, which is a component that lets you display your data in a grid.
Related
I have made two JScrollPane components. The left one shows the directories in USB and right shows the directories of a local drive. For I am able to display the complete file path as shown in first pic. But I want to display it with icons just like the way directories are displayed in any local drive on PC. This is my designed GUI, here is the example of what I want example
public class MainForm extends javax.swing.JFrame {
iRecordCopy obj = new iRecordCopy();
public MainForm() {
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">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
jScrollPane2 = new javax.swing.JScrollPane();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Main From");
setLocation(new java.awt.Point(0, 0));
setName("mainframe"); // NOI18N
jLabel1.setFont(new java.awt.Font("Times New Roman", 1, 24)); // NOI18N
jLabel1.setText("iRecordCopy");
jLabel2.setText("jLabel2");
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()
.addComponent(jLabel2)
.addGap(48, 48, 48)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 147, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap(25, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 46, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel2))
.addGap(30, 30, 30))
);
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)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 297, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 305, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE))
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 405, Short.MAX_VALUE)
.addComponent(jScrollPane2))
.addContainerGap())
);
pack();
}// </editor-fold>
/**
* #param args the command line arguments
*/
public 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(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(MainForm.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 MainForm().setVisible(true);
}
});
}
public void showusb()
{
File[] usb;
int count = 0;
String str;
usb = obj.detectUSB();
if(usb == null)
{
//USB_window.setText("No USB attached\n");
return;
}
for (File filename : usb) {
str = filename.toString().substring(3);
str = str.substring(0, str.length() - 3);
System.out.println(str);
if(str.equalsIgnoreCase("vehicle"))
{
System.out.print(filename.toString());
//USB_window.append(filename.getPath()+"\n");
count++;
}
}
if(count == 0)
{
System.out.println("No recordings found in usb");
}
else
System.out.println("Number of directries :" + count);
//File currentDir = new File(System.getProperty("user.home"));
JList<File> jlist=new JList<File>(obj.path.listFiles());
jScrollPane1 = new JScrollPane(jlist);
jScrollPane1.setPreferredSize(new Dimension(400, 800));
setContentPane(jScrollPane1);
final JLabel label=new JLabel();
jlist.setCellRenderer(new ListCellRenderer<File>() {
#Override
public Component getListCellRendererComponent(JList<? extends File> list, File value, int index,
boolean isSelected, boolean cellHasFocus) {
label.setIcon(FileSystemView.getFileSystemView().getSystemIcon(value));
label.setText(value.getName());
return label;
}
});
}
public void showPc(File f)
{
JList<File> jlist=new JList<File>(f.listFiles());
jScrollPane2 = new JScrollPane(jlist);
//jScrollPane2.setPreferredSize(new Dimension(400, 800));
setContentPane(jScrollPane2);
final JLabel label=new JLabel();
jlist.setCellRenderer(new ListCellRenderer<File>() {
#Override
public Component getListCellRendererComponent(JList<? extends File> list, File value, int index,
boolean isSelected, boolean cellHasFocus) {
label.setIcon(FileSystemView.getFileSystemView().getSystemIcon(value));
label.setText(value.getName());
return label;
}
});
}
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
// End of variables declaration
}
Here a short example to create a minimal JList with file icons, it displays the content of the user's home directory using the system file icons.
package test;
import java.awt.Component;
import java.awt.Dimension;
import java.io.File;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ListCellRenderer;
import javax.swing.filechooser.FileSystemView;
public class Test {
public static void main(String[] args) {
JFrame frame=new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
File currentDir=new File(System.getProperty("user.home"));
JList<File> jlist=new JList<File>(currentDir.listFiles());
JScrollPane scrollPane=new JScrollPane(jlist);
scrollPane.setPreferredSize(new Dimension(400, 800));
frame.setContentPane(scrollPane);
final JLabel label=new JLabel();
jlist.setCellRenderer(new ListCellRenderer<File>() {
#Override
public Component getListCellRendererComponent(JList<? extends File> list, File value, int index,
boolean isSelected, boolean cellHasFocus) {
label.setIcon(FileSystemView.getFileSystemView().getSystemIcon(value));
label.setText(value.getName());
return label;
}
});
frame.pack();
frame.setVisible(true);
}
}
I've built a Higher/Lower game, using the Swing library. When I run the code I don't get any errors or warnings. The problem appears when I try running the code, the window is empty, not the way it should be.
I use NetBeans to program.There are 2 different files in my project, here is the code...
HiLoGUI.java:
import java.awt.Dimension;
import javax.swing.*;
public class HiLoGUI extends JFrame {
private JTextField txtGuess;
private JLabel outputLabel;
private int theNumber;
public void newGame() {
theNumber = (int)(Math.random() * 100 + 1);
}
public void checkGuess() {
String guessText = txtGuess.getText();
String message = "";
int guess = Integer.parseInt(guessText);
if (guess < theNumber) {
message = guess + " is too low. Try again.";
}
else if (guess > theNumber) {
message = guess + " is too high. Try again.";
}
else {
message = guess + " is correct. You win!";
}
outputLabel.setText(message);
}
public static void main(String[] args) {
HiLoGUI theGame = new HiLoGUI();
theGame.newGame();
theGame.setSize(new Dimension(450,300));
theGame.setVisible(true);
}
}
The window should look like this:
NetBeans screenshot
EDIT:
The other files code:
public class HiLoJFrame extends javax.swing.JFrame {
/**
* Creates new form HiLoJFrame
*/
public HiLoJFrame() {
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">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
titleLabel = new javax.swing.JLabel();
chooseLabel = new javax.swing.JLabel();
txtGuess = new javax.swing.JTextField();
guessButton = new javax.swing.JButton();
outputLabel = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
setName("HiLoGame"); // NOI18N
titleLabel.setFont(new java.awt.Font("SansSerif", 1, 24)); // NOI18N
titleLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
titleLabel.setText("High/Lower Game");
titleLabel.setVerticalAlignment(javax.swing.SwingConstants.TOP);
chooseLabel.setFont(new java.awt.Font("SansSerif", 0, 15)); // NOI18N
chooseLabel.setText("Guess a name between 1 to 100");
txtGuess.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txtGuessActionPerformed(evt);
}
});
guessButton.setFont(new java.awt.Font("Ubuntu", 0, 18)); // NOI18N
guessButton.setText("Guess");
guessButton.setCursor(new java.awt.Cursor(java.awt.Cursor.MOVE_CURSOR));
guessButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
guessButtonActionPerformed(evt);
}
});
outputLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
outputLabel.setText("Enter a number and press Guess");
outputLabel.setVerticalAlignment(javax.swing.SwingConstants.BOTTOM);
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()
.addContainerGap(50, Short.MAX_VALUE)
.addComponent(chooseLabel)
.addGap(18, 18, 18)
.addComponent(txtGuess, javax.swing.GroupLayout.PREFERRED_SIZE, 69, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(136, 136, 136)
.addComponent(guessButton, javax.swing.GroupLayout.PREFERRED_SIZE, 114, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(78, 78, 78)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(titleLabel)
.addComponent(outputLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 237, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGap(0, 0, Short.MAX_VALUE)))
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(titleLabel)
.addGap(75, 75, 75)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(txtGuess, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(chooseLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 34, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 23, Short.MAX_VALUE)
.addComponent(guessButton, javax.swing.GroupLayout.PREFERRED_SIZE, 43, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(53, 53, 53)
.addComponent(outputLabel)
.addGap(35, 35, 35))
);
titleLabel.getAccessibleContext().setAccessibleDescription("");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 422, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap()))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 346, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap()))
);
getAccessibleContext().setAccessibleName("HiLoGame");
pack();
}// </editor-fold>
private void txtGuessActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void guessButtonActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
HiLoGUI hilogui = new HiLoGUI();
hilogui.checkGuess();
}
/**
* #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(HiLoJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(HiLoJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(HiLoJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(HiLoJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(() -> {
new HiLoJFrame().setVisible(true);
});
}
// Variables declaration - do not modify
private javax.swing.JLabel chooseLabel;
private javax.swing.JButton guessButton;
private javax.swing.JPanel jPanel1;
private javax.swing.JLabel outputLabel;
private javax.swing.JLabel titleLabel;
private javax.swing.JTextField txtGuess;
// End of variables declaration
}
EDIT2:
I've changed the main class of HiLoGUI.java
I was creating a wrong object.
New main:
public static void main(String[] args) {
HiLoJFrame theGame = new HiLoJFrame();
theGame.newGame();
theGame.setSize(new Dimension(450,300));
theGame.setVisible(true);
}
Now it claims that I need to create that method (newGame) in the JFrame file.
You are calling a method from the wrong class, according to the Swing docs, it is not needed to create a new JFrame object, so setting its visibility is enough. Check this out: How To Call JFrame from another Java class
I am making a graphical interface in Netbeans where you can put a series of numbers (example: 7 8 5 4 10 13) in the textfield "punten" and when you press the button "ververs" a graphical linechart of all the numbers should appear (in my panel). I made a class "Gui" that extends JFrame with the Textfield, the button and a panel in it. I also made a class "Grafiek" that extends JPanel and that is linked with the panel in my "Gui".
The problems that I experience are: the repaint(); command won't go to the paintComponent(Graphics g)-method and my private variables won't change (the length of punt and punti stays 0).
Can somebody please help me, I've been working on this project for days.
My Gui-class:
import java.awt.Graphics;
public class Gui extends javax.swing.JFrame {
public Gui() {
initComponents();
panel = new javax.swing.JPanel();
}
/**
* 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() {
punten = new javax.swing.JTextField();
fout = new javax.swing.JLabel();
javax.swing.JButton ververs = new javax.swing.JButton();
panel = new Grafiek();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
fout.setText("j");
ververs.setText("Ververs");
ververs.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
verversActionPerformed(evt);
}
});
panel.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 2));
javax.swing.GroupLayout panelLayout = new javax.swing.GroupLayout(panel);
panel.setLayout(panelLayout);
panelLayout.setHorizontalGroup(
panelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
panelLayout.setVerticalGroup(
panelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 195, Short.MAX_VALUE)
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(punten, javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(ververs)
.addGap(6, 6, 6)
.addComponent(fout)
.addGap(0, 302, Short.MAX_VALUE)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(punten, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(fout)
.addComponent(ververs))
.addContainerGap())
);
pack();
}// </editor-fold>
private void verversActionPerformed(java.awt.event.ActionEvent evt) {
Grafiek graf = new Grafiek();
graf.verwerkData(punten.getText());
}
/**
* #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(Gui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Gui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Gui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Gui.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 Gui().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JLabel fout;
private javax.swing.JPanel panel;
private javax.swing.JTextField punten;
// End of variables declaration
}
And my "Grafiek"-class:
import java.awt.Graphics;
public class Grafiek extends javax.swing.JPanel {
private String[] punt;
private int[] punti;
private int afstandX, afstandY, puntX1=0, puntY1=0, puntX2=0, puntY2=0;
private int max=1;
/**
* Creates new form Grafiek
*/
public Grafiek() {
initComponents();
}
#Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
try{
for(int i=0; i<punti.length; i++) {
if(max <= punti[i]) {
max = punti[i];
}
}
afstandX = getWidth()/punt.length;
afstandY = getHeight()/max;
for(int i=0; i<punti.length; i++) {
puntX1 = puntX2;
if(i == 0) {
puntY1 = getHeight();
}
else puntY1 = puntY2;
puntX2 += afstandX;
puntY2 = getHeight() - punti[i]*afstandY;
g.drawLine(puntX1, puntY1, puntX2, puntY2);
}
puntX2 = 0;
puntY2 = 0;
}catch(java.lang.NullPointerException npe) {
super.paintComponent(g);
}
}
public void verwerkData(String s) {
punt = s.split(" ");
punti = new int[punt.length];
for(int i=0; i<punt.length; i++) {
punti[i] = Integer.parseInt(punt[i]);
}
repaint();
}
/**
* 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() {
setBackground(new java.awt.Color(255, 255, 255));
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 400, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 300, Short.MAX_VALUE)
);
}// </editor-fold>
}
The code does not work because you add your points to the wrong object.
First of all, your panel object is not of type Grafiek, second of all it is first initialized in the method initComponents() and then overwritten again in the constructor.
Second problem, in the method verversActionPerformed called by the action listener, you create a new instance of Grafiek that is obviously not the one you have created/added before.
Thus, to make it work alter the code as follows:
The constructor should look the following:
public Gui() {
initComponents();
//panel = new javax.swing.JPanel();
}
The method like this:
private void verversActionPerformed(java.awt.event.ActionEvent evt) {
Grafiek graf = (Grafiek)panel;
graf.verwerkData(punten.getText());
}
Thus, it works as you expected.
However, this is far away from good code. You should set the type of variable panel to the correct type Grafiek.
I have a series of radio buttons generated as an array and displayed in a jPanel.
I want a series of checkboxes in a second panel to be enbled when the radio buttons are in output state but not in the input (input or output are the radio choices).
I want to call the checking state method whenever any of the radiobuttons states change but don't know how to do this as they are created in an array.
Currently the method is called only when the radio button panel is actually clicked.
package my.ArduinoGUI;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
public class ArduinoGUI extends javax.swing.JFrame {
public ArduinoGUI() {
initCustomComponents();
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">
private void initComponents() {
buttonGroup1 = new javax.swing.ButtonGroup();
jPanel1 = new javax.swing.JPanel();
digitalPinPanel = new javax.swing.JPanel(new GridLayout(0, 3));
jPanel3 = new javax.swing.JPanel(new GridLayout(0, 1));
jPanel2 = new javax.swing.JPanel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("Outputs"));
jPanel1.setName("Outputs"); // NOI18N
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 209, Short.MAX_VALUE)
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 106, Short.MAX_VALUE)
);
digitalPinPanel.setBorder(javax.swing.BorderFactory.createTitledBorder("Digital Pin State"));
digitalPinPanel.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
digitalPinPanelMouseReleased(evt);
}
});
digitalPinLabelArray = new javax.swing.JLabel[digitalPinTotal];
digitalPinRadioButtonArray = new javax.swing.JRadioButton[digitalPinTotal][2];
digitalPinGroupArray = new javax.swing.ButtonGroup[digitalPinTotal];
for(int x = 0; x < digitalPinTotal ; x++) {
digitalPinGroupArray[x] = new javax.swing.ButtonGroup(); // populate button group
digitalPinLabelArray[x] = new javax.swing.JLabel(); // populate label array
digitalPinLabelArray[x].setText("Pin " + (x +2));
digitalPinPanel.add(digitalPinLabelArray[x]); // add label to panel
for(int y = 0; y < 2; y++){
digitalPinRadioButtonArray[x][y] = new javax.swing.JRadioButton(); // populate radio button array
if (y == 0) {digitalPinRadioButtonArray[x][y].setText("Input");}
if (y == 1) {digitalPinRadioButtonArray[x][y].setText("Output"); digitalPinRadioButtonArray[x][y].setSelected(true);
}
digitalPinGroupArray[x].add(digitalPinRadioButtonArray[x][y]); // assign radio buttons to group
digitalPinPanel.add(digitalPinRadioButtonArray[x][y]); // add buttons to panel
}
}
jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder("Generated Boxes"));
digitalPinOutputArray = new javax.swing.JCheckBox[digitalPinTotal];
for(int x = 0; x < digitalPinTotal ; x++) {
digitalPinOutputArray[x] = new javax.swing.JCheckBox();
digitalPinOutputArray[x].setText("Output Pin " + (x+2));
jPanel3.add(digitalPinOutputArray[x]);
}
jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("Analog Pin State"));
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 126, Short.MAX_VALUE)
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
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, false)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(18, 18, 18)
.addComponent(digitalPinPanel, javax.swing.GroupLayout.PREFERRED_SIZE, 159, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addGap(23, 23, 23)
.addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, 199, Short.MAX_VALUE)
.addGap(18, 18, 18)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(digitalPinPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
.addContainerGap())
);
digitalPinPanel.getAccessibleContext().setAccessibleName("DigitalPins");
pack();
}// </editor-fold>
private void digitalPinPanelMouseReleased(java.awt.event.MouseEvent evt) {
// if output selected enable checkbox otherwise disable it
for (int x = 0; x < digitalPinTotal; x++) {
if (digitalPinRadioButtonArray[x][0].isSelected() == true) {
digitalPinOutputArray[x].setEnabled(false);
}
if (digitalPinRadioButtonArray[x][1].isSelected() == true) {
digitalPinOutputArray[x].setEnabled(true);
}
}
}
/**
* #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 ("Windows".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(ArduinoGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(ArduinoGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(ArduinoGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(ArduinoGUI.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 ArduinoGUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.ButtonGroup buttonGroup1;
private javax.swing.JPanel digitalPinPanel;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
// End of variables declaration
private int digitalPinTotal = 12;
private int analogPinTotal = 8;
private javax.swing.JCheckBox[] digitalPinOutputArray;
private javax.swing.JRadioButton[][] digitalPinRadioButtonArray;
private javax.swing.ButtonGroup[] digitalPinGroupArray;
private javax.swing.JLabel[] digitalPinLabelArray;
private void initCustomComponents() {
//throw new UnsupportedOperationException("Not yet implemented");
// create checkbox array
}
}
digitalPinRadioButtonArray[x][y].addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getActionCommand().equals("Output"))
{
digitalPinOutputArray[2].setSelected(true);
}
}
});
try this
So i have text that is quite a bit longer than some of the components they occupy. I have come up with reasonable solutions for most of the problems, but i don't know what to do with very long text items in combo boxes. If the user can not see the text, he can not make the right decision - especially if the first part of the text matches. See my SSCCE below.
I have used a JScrollpane to resolve the issue of long text in a JTextfield and i have used a tooltip to resolve long text in a JXhyperlink field. Also, i ahve a tooltip for the combo box that can display a long item AFTER it has been selected, but ideally i would like to give that option to the user BEFORE he makes his choice. This code example was put together using Netbeans' GUI designer (great for RAD purposes) and the layout is the GroupLayout that the GUI designer uses.
package longtextsexample;
import javax.swing.JFileChooser;
public class MainFrame extends javax.swing.JFrame {
/**
* Creates new form MainFrame
*/
public MainFrame() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
*/
#SuppressWarnings("unchecked")
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jTextField1 = new javax.swing.JTextField();
jComboBox1 = new javax.swing.JComboBox();
jXHyperlink1 = new org.jdesktop.swingx.JXHyperlink();
jButton1 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jScrollPane1.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
jScrollPane1.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
jScrollPane1.setViewportView(jTextField1);
jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 222222222222222222222222", "Item 333333333333333333333333", "Item 333333333333333333333333444444444444" }));
jComboBox1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jComboBox1ActionPerformed(evt);
}
});
jXHyperlink1.setText("Path");
jButton1.setText("Browse");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 164, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 164, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 19, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(6, 6, 6)
.addComponent(jXHyperlink1, javax.swing.GroupLayout.PREFERRED_SIZE, 130, javax.swing.GroupLayout.PREFERRED_SIZE))))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(11, 11, 11)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton1)
.addGroup(layout.createSequentialGroup()
.addGap(4, 4, 4)
.addComponent(jXHyperlink1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))
);
pack();
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
JFileChooser jfc = new JFileChooser();
String path;
if (jfc.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
path = jfc.getSelectedFile().getAbsolutePath();
} else {
path = "";
}
jXHyperlink1.setText(path);
jXHyperlink1.setToolTipText(path);
}
private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {
jComboBox1.setToolTipText(jComboBox1.getSelectedItem().toString());
}
/**
* #param args the command line arguments
*/
public static void main(String args[]) {
/*
* Set the Nimbus look and feel
*/
/*
* 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);
}
/*
* Create and display the form
*/
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new MainFrame().setVisible(true);
}
});
}
// Variables declaration
private javax.swing.JButton jButton1;
private javax.swing.JComboBox jComboBox1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField jTextField1;
private org.jdesktop.swingx.JXHyperlink jXHyperlink1;
// End of variables declaration
}
How to deal with very long text items in comboboxes
1) you can put JTextArea or better could be JTextPane to the derived JList from JComboBox
anyhow above point could be simple, but why do that, because there is
2) Combo Box Popup, I'd suggest to set setMaximumWidth