Add images in an array by selecting images from file chooser

Add images in an array by selecting images from file chooser - java

In this program, I am trying to select images from users using filechooser and then displaying those images. By default I added 2 images. When I add more images it doesn't display?
Below is my entire code
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import java.awt.FlowLayout;
import java.io.File;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
public class CLayout {
JFrame frame = new JFrame("CardLayout demo");
JPanel panelCont = new JPanel();
LoginView log = new LoginView();
JPanel Img = new ImageGallery();
CardLayout cl = new CardLayout();
public CLayout() {
panelCont.setLayout(cl);
log.setLayout(new BoxLayout(log, BoxLayout.PAGE_AXIS));
Img.setLayout(new BoxLayout(Img, BoxLayout.PAGE_AXIS));
panelCont.add(log, "1");
panelCont.add(Img, "2");
cl.show(panelCont, "1");
ActionListener loginListener = new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
String userName = log.getUserName();
char[] password = log.getPassword();
String pass=new String(password);
if (LoginView.LOGIN.equals(e.getActionCommand())) {
if(userName.equals("imagegallery")&& pass.equals("12345"))
cl.show(panelCont, "2");
}
}
};
log.addActionListener(loginListener);
frame.add(panelCont);
frame.setSize(800,600);
frame.setTitle(" Image Gallery ");
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new CLayout();
}
});
}
}
class ImageGallery extends JPanel {
private ImageIcon myImage1 = new ImageIcon ("Chrysanthemum.jpg");
private ImageIcon myImage2 = new ImageIcon ("Desert.jpg");
JPanel ImageGallery = new JPanel();
private ImageIcon[] myImages =new ImageIcon[10];
private int curImageIndex=0;
private int count=0;
private int total=1;
public ImageGallery () {
ImageGallery.add(new JLabel (myImage1));
myImages[0]=myImage1;
myImages[1]=myImage2;
add(ImageGallery, BorderLayout.CENTER);
JButton PREVIOUS = new JButton ("Previous");
JButton NEXT = new JButton ("Next");
JDialog.setDefaultLookAndFeelDecorated(true);
JButton button = new JButton("Select File");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser fileChooser = new JFileChooser();
int returnValue = fileChooser.showOpenDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File selectedFile = fileChooser.getSelectedFile();
System.out.println(selectedFile.getName().toString());
ImageIcon tImage=new ImageIcon("selectedFile.getName().toString()");
System.out.println(myImages.length);
int n=2+count;
myImages[n]=tImage;
total=total+count+1;
count++;
System.out.println(total+" "+count);
}
}
});
JPanel Menu = new JPanel();
Menu.setLayout(new GridLayout(1,3));
add(Menu, BorderLayout.NORTH);
Menu.add(PREVIOUS);
Menu.add(NEXT);
Menu.add(button);
//register listener
PreviousButtonListener PreviousButton = new PreviousButtonListener ();
NextButtonListener NextButton = new NextButtonListener ();
//add listeners to corresponding componenets
PREVIOUS.addActionListener(PreviousButton);
NEXT.addActionListener(NextButton);
}
class PreviousButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
if(curImageIndex>0 && curImageIndex <=total) {
ImageGallery.remove(0);
curImageIndex=curImageIndex-1;
ImageIcon TheImage= myImages[curImageIndex];
ImageGallery.add(new JLabel (TheImage));
ImageGallery.validate();
ImageGallery.repaint();
} else {
ImageGallery.remove(0);
ImageGallery.add(new JLabel (myImage1));
curImageIndex=0;
ImageGallery.validate();
ImageGallery.repaint();
}
}
}
class NextButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
if(curImageIndex>=0 && curImageIndex <total){
ImageGallery.remove(0);
curImageIndex = curImageIndex + 1;
ImageIcon TheImage= myImages[curImageIndex];
ImageGallery.add(new JLabel (TheImage));
ImageGallery.validate();
ImageGallery.repaint();
} else {
ImageGallery.remove(0);
ImageGallery.add(new JLabel (myImages[total]));
curImageIndex=total ;
ImageGallery.validate();
ImageGallery.repaint();
}
}
}
}
class LoginView extends JPanel {
JLabel userLabel = new JLabel("User");
JTextField userText = new JTextField(20);
JLabel passwordLabel = new JLabel("Password");
JPasswordField passwordText = new JPasswordField(20);
private final JButton loginButton;
private final JButton registerButton;
public static final String LOGIN = "Login";
public static final String REGISTER = "Regster";
public LoginView() {
setLayout(new GridLayout(0, 2));
userLabel.setBounds(10, 10, 80, 25);
add(userLabel);
userText.setBounds(10, 10, 60, 25);
add(userText);
passwordLabel.setBounds(10, 40, 80, 25);
add(passwordLabel);
passwordText.setBounds(100, 40, 160, 25);
add(passwordText);
loginButton = new JButton("login");
loginButton.setActionCommand(LOGIN);
registerButton = new JButton("register");
registerButton.setActionCommand(REGISTER);
add(loginButton);
}
public void addActionListener(ActionListener listener) {
loginButton.addActionListener(listener);
registerButton.addActionListener(listener);
}
public String getUserName() {
return userText.getText();
}
public char[] getPassword() {
return passwordText.getPassword();
}
}

Problem is in this line
ImageIcon tImage=new ImageIcon("selectedFile.getName().toString()");
you need to remove double-quotes in order to read actual file name.
ImageIcon tImage=new ImageIcon(selectedFile.getName().toString());
Hope this helps.

Related

Java Card Layout only shows the first panel

Hi sorry if this has already been posted but my code doesn't work as it should. I am new to java programming and would like someone to point me in the right direction on how I could change to desired panels by pressing a button. In my code it only shows the first panel and when I press the button to show the next panel it gives me Wrong parent for CardLayout error. Also this is my first question, I hope you are clear what I'm trying to ask.
// **class Containing the cardLayout**
import java.awt.CardLayout;
import java.awt.Container;
import java.util.HashMap;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Frame extends JFrame{
IDandPassword idandPasswords = new IDandPassword();
JPanel login = new LoginPage(idandPasswords.getLoginInfo());
JPanel newUser = new NewUser();
Encryption enc = new Encryption();
Decryption dec = new Decryption();
CardLayout cl = new CardLayout();
Container panel = new Container();
void setGui() {
this.setSize(420,420);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.setResizable(false);
this.setContentPane(panel);
System.out.println("Frame");
panel.setLayout(cl);
panel.add(login,"1");
panel.add(newUser,"2");
panel.add(enc,"3");
panel.add(dec,"4");
}
// **Class containing the 1st panel to show
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashMap;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class LoginPage extends JPanel implements ActionListener{
JButton loginButton = new JButton("Login");
JButton resetButton = new JButton("Reset");
JButton newUserButton = new JButton("Add User");
JTextField UserIdField = new JTextField();
JPasswordField UserPasswordField = new JPasswordField();
JLabel userIdLabel = new JLabel("User ID");
JLabel userPasswordLabel = new JLabel("Password");
JLabel messageLabel = new JLabel();
HashMap <String,String> logininfo = new HashMap<String,String>();
LoginPage(HashMap<String,String> loginInfoOriginal) {
System.out.println("Login page constructor");
this.setSize(420,420);
this.setLayout(null);
this.setFocusable(true);
logininfo = loginInfoOriginal;
userIdLabel.setBounds(50,100,75,25);
userPasswordLabel.setBounds(50,150,75,25);
messageLabel.setBounds(125,303,250,35);
messageLabel.setFont(new Font(null,Font.BOLD,25));
UserIdField.setBounds(125,100,200,25);
UserPasswordField.setBounds(125,150,200,25);
loginButton.setBounds(125,200,100,25);
loginButton.setFocusable(false);
loginButton.addActionListener(this);
resetButton.setBounds(225,200,100,25);
resetButton.setFocusable(false);
resetButton.addActionListener(this);
newUserButton.setBounds(125,250,100,25);
newUserButton.setFocusable(false);
newUserButton.addActionListener(this);
this.add(userIdLabel);
this.add(userPasswordLabel);
this.add(messageLabel);
this.add(UserIdField);
this.add(UserPasswordField);
this.add(loginButton);
this.add(resetButton);
this.add(newUserButton);
}
#Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == resetButton) {
UserIdField.setText("");
UserPasswordField.setText("");
messageLabel.setText("");
}
if(e.getSource() == loginButton) {
String userId = UserIdField.getText();
String password = String.valueOf(UserPasswordField.getPassword());
if(logininfo.containsKey(userId)) {
if(logininfo.get(userId).equals(password)) {
messageLabel.setForeground(Color.green);
messageLabel.setText("Login Successful");
}
else {
messageLabel.setForeground(Color.red);
messageLabel.setText("Incorrect Password");
}
}else {
messageLabel.setForeground(Color.red);
messageLabel.setText("Invalid Username");
}
}
if(e.getSource() == newUserButton) {
Frame f= new Frame();
f.cl.show(f.getContentPane(), "2");
}
}
}
//**class Containing 2nd panel to show
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class NewUser extends JPanel implements ActionListener{
JButton addButton = new JButton("Add");
JButton resetButton = new JButton("Reset");
JTextField newUserIdField = new JTextField();
JTextField newUserPasswordField = new JTextField();
JLabel newUserIdLabel = new JLabel("New User ID");
JLabel newuserPasswordLabel = new JLabel("New Password");
JLabel messageLabel = new JLabel();
JLabel titleLabel = new JLabel("Add a new User");
JButton backButton = new JButton("Back");
NewUser() {
this.setSize(420,420);
this.setLayout(null);
this.setFocusable(true);
newUserIdLabel.setBounds(22,100,75,25);
newuserPasswordLabel.setBounds(22,150,89,25);
messageLabel.setBounds(125,250,250,35);
messageLabel.setFont(new Font(null,Font.BOLD,25));
titleLabel.setFont(new Font("Tahoma", Font.BOLD, 14));
titleLabel.setBounds(125,43,108,35);
newUserIdField.setBounds(125,100,200,25);
newUserPasswordField.setBounds(125,150,200,25);
addButton.setBounds(125,200,100,25);
addButton.setFocusable(false);
addButton.addActionListener(this);
resetButton.setBounds(225,200,100,25);
resetButton.setFocusable(false);
resetButton.addActionListener(this);
backButton.setBounds(263,302,100,25);
backButton.addActionListener(this);
backButton.setFocusable(false);
this.add(newUserIdLabel);
this.add(newuserPasswordLabel);
this.add(messageLabel);
this.add(newUserIdField);
this.add(newUserPasswordField);
this.add(addButton);
this.add(resetButton);
this.add(addButton);
this.add(titleLabel);
this.add(backButton);
}
public void addUser() {
IDandPassword idandPasswords = new IDandPassword();
idandPasswords.setLoginInfo(newUserIdField.getText(),newUserPasswordField.getText());
}
#Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == backButton) {
IDandPassword idandPasswords = new IDandPassword();
Frame frame =new Frame();
frame.setContentPane(new LoginPage(idandPasswords.getLoginInfo()));
}
if(e.getSource() == addButton) {
IDandPassword idandPasswords = new IDandPassword();
if(idandPasswords.logininfo.containsKey(newUserIdField.getText())) {
System.out.println("User already exists");
}
else {
if(newUserIdField.getText() != "" && newUserPasswordField.getText() != "") {
addUser();
System.out.println("User added");
}
}
}
}
}
// **Main Class**
public class Main {
public static void main(String[] args) {
Frame f=new Frame();
f.setGui();
}
}

how to use a template dialog panel for multiple buttons?

I'm writing a GUI in java. I have a JXTable in which I currently only have static data, but I want allow the user to input data by using a template panel that I have created.
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Window;
import java.awt.Dialog.ModalityType;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.border.TitledBorder;
import javax.swing.table.DefaultTableModel;
public class Template_StackOverflowExample extends JPanel{
private JPanel diagPanel = new dialogTemplate();
Object[] columnIdentifiers = {
"id",
"imei",
};
Object[][] data = {
{"1", "123"},
{"2", "123"},
{"3", "123"}
};
private JDialog dialog;
private static DefaultTableModel model;
public Template_StackOverflowExample(){
setLayout(new BorderLayout());
JPanel pane = new JPanel(new BorderLayout());
JButton addRow = new JButton("Add Row");
addRow.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
openRowPane("Add Row");
}
});
JButton editRow = new JButton("Edit Row");
editRow.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
openRowPane("Edit Row");
}
});
JPanel buttonPane = new JPanel(new GridLayout(0, 1));
TitledBorder buttonBorder = new TitledBorder("Buttons");
buttonPane.setBorder(buttonBorder);
buttonPane.add(addRow);
buttonPane.add(editRow);
model = new DefaultTableModel();
model.setColumnIdentifiers(columnIdentifiers);
JTable table = new JTable(model);
for(int i = 0; i < data.length; i++){
model.insertRow(i, data[i]);
}
JScrollPane scrollPane = new JScrollPane(table);
pane.add(buttonPane, BorderLayout.LINE_END);
pane.add(scrollPane, BorderLayout.CENTER);
add(pane, BorderLayout.CENTER);
}
public void openRowPane(String name){
if(dialog == null){
Window win = SwingUtilities.getWindowAncestor(this);
if(win != null){
dialog = new JDialog(win, name, ModalityType.APPLICATION_MODAL);
dialog.getContentPane().add(diagPanel);
dialog.pack();
dialog.setLocationRelativeTo(null);
}
}
dialog.setVisible(true);
}
public static void createAndShowGUI(){
JFrame frame = new JFrame("MCVE");
Template_StackOverflowExample mainPanel = new Template_StackOverflowExample();
frame.add(mainPanel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args){
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
createAndShowGUI();
}
});
}
}
class dialogTemplate extends JPanel{
private JComponent[] content;
private String[] labelHeaders = {
"ID:",
"IMEI:",
};
public dialogTemplate(){
JPanel diagTemplate = new JPanel();
diagTemplate.setLayout(new BorderLayout());
JPanel rowContent = new JPanel(new GridLayout(0, 2));
JLabel idLabel = null;
JLabel imeiLabel = null;
JLabel[] labels = {
idLabel,
imeiLabel,
};
JTextField idTextField = new JTextField(20);
JTextField imeiTextField = new JTextField(20);
content = new JComponent[] {
idTextField,
imeiTextField,
};
for(int i = 0; i < labels.length; i++){
labels[i] = new JLabel(labelHeaders[i]);
rowContent.add(labels[i]);
rowContent.add(content[i]);
labels[i].setLabelFor(content[i]);
}
JButton save = new JButton("Save");
save.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
closeWindow();
}
});
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
closeWindow();
}
});
JPanel buttonPane = new JPanel(new GridLayout(0, 1, 5, 5));
buttonPane.add(save);
buttonPane.add(cancel);
buttonPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
diagTemplate.add(buttonPane, BorderLayout.PAGE_END);
diagTemplate.add(rowContent, BorderLayout.CENTER);
add(diagTemplate);
}
public void closeWindow(){
Window win = SwingUtilities.getWindowAncestor(this);
if(win != null) {
win.dispose();
}
}
}
As you might see both of the buttons in the pane creates the dialog that is created first ("Add Row" or "Edit Row"). I want them to create different dialogs so that the editing of data doesn't conflict with the addition of data.
Thanks in advance.

Assign a different dialog-creating method to each button so you can open two dialogs:
public void openRowPane(String name){
if(dialog == null){
Window win = SwingUtilities.getWindowAncestor(this);
//change modality
dialog = new JDialog(win, name, ModalityType.MODELESS);
dialog.getContentPane().add(diagPanel);
dialog.pack();
dialog.setLocationRelativeTo(null);
}
dialog.setVisible(true);
}
public void openRowPane2(String name){
if(dialog2 == null){
Window win = SwingUtilities.getWindowAncestor(this);
//change modality
dialog2 = new JDialog(win, name, ModalityType.MODELESS);
dialog2.getContentPane().add(diagPanel2);
dialog2.pack();
dialog2.setLocationRelativeTo(null);
}
dialog2.setVisible(true);
}

component must be showing on the screen to determine its location when changing JCOMBOX

I am receiving this error when i change items in the Jcombobox, nothing breaks it just shows this error, is there anyway to just throw it so it doesn't show up. everything still works fine, but if you wish to have a look at the code. i will post below.
Error message:
java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:2056)
at java.awt.Component.getLocationOnScreen(Component.java:2030)
at sun.lwawt.macosx.CAccessibility$23.call(CAccessibility.java:395)
at sun.lwawt.macosx.CAccessibility$23.call(CAccessibility.java:393)
at sun.lwawt.macosx.LWCToolkit$CallableWrapper.run(LWCToolkit.java:538)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
And my code which i don't know which section to show so its all their.
import javax.swing.*;
import java.awt.Dialog.ModalityType;
import java.awt.event.*;
import java.awt.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
public class TouchOn extends JDialog {
private JPanel mainPanel;
public ArrayList Reader(String Txtfile) {
try {
ArrayList<String> Trains = new ArrayList<String>();
int count = 0;
String testing = "";
File file = new File(Txtfile);
FileReader fileReader = new FileReader(file);
BufferedReader bufferedReader = new BufferedReader(fileReader);
StringBuffer stringBuffer = new StringBuffer();
String line;
while ((line = bufferedReader.readLine()) != null)
{
stringBuffer.append(line);
count += count;
if(!line.contains("*")){
Trains.add(line + "\n");
}
stringBuffer.append("\n");
}
fileReader.close();
//Arrays.asList(Trains).stream().forEach(s -> System.out.println(s));
return Trains;
} catch (IOException e) {
e.printStackTrace();
}
//return toString();
return null;
}
public TouchOn()
{
setPanels();
setModalityType(ModalityType.APPLICATION_MODAL);
setSize(400, 300);
setVisible(true);
}
public void setPanels()
{
mainPanel = new JPanel(new GridLayout(0, 2));
JPanel containerPanel = new JPanel(new GridLayout(0, 1));
JLabel startDay = new JLabel("Day:");
JTextField sDay = new JTextField();
JLabel startMonth = new JLabel("Month:");
JTextField sMonth = new JTextField();
JLabel startYear = new JLabel("Year:");
JTextField sYear = new JTextField("2015");
String trainline = "";
JLabel touchOnTimehr = new JLabel("Time Hour: ");
JLabel touchOnTimem = new JLabel("Time Minute:");
JLabel station = new JLabel("Station: ");
JTextField touchOnTimeFieldhour = new JTextField();
JTextField touchOnTimeFieldminute = new JTextField();
JPanel lowerPanel = new JPanel(new FlowLayout());
ArrayList<String> stations = Reader("TrainLines.txt");
JComboBox<String> cb = new JComboBox<>(stations.toArray(new String[stations.size()]));
JRadioButton belgrave = new JRadioButton("Belgrave Line");
belgrave.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
JRadioButton glenwaverly = new JRadioButton("Glen Waverly Line");
glenwaverly.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
ButtonGroup bG = new ButtonGroup();
JButton apply = new JButton("Touch on");
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dispose();
}
});
apply.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
String timestamp = new java.text.SimpleDateFormat("dd/MM/yyyy").format(new Date());
String day = sDay.getText();
String month = sMonth.getText();
String year = sYear.getText();
String hour = touchOnTimeFieldhour.getText();
String minute = touchOnTimeFieldminute.getText();
if(belgrave.isSelected()){
String trainline = belgrave.getText();
}
if(glenwaverly.isSelected()){
String trainline = glenwaverly.getText();
}
System.out.println(trainline);
}
});
cb.setVisible(true);
bG.add(belgrave);
bG.add(glenwaverly);
mainPanel.add(startDay);
mainPanel.add(sDay);
mainPanel.add(startMonth);
mainPanel.add(sMonth);
mainPanel.add(startYear);
mainPanel.add(sYear);
mainPanel.add(touchOnTimehr);
mainPanel.add(touchOnTimeFieldhour);
mainPanel.add(touchOnTimem);
mainPanel.add(touchOnTimeFieldminute);
mainPanel.add(belgrave);
mainPanel.add(glenwaverly);
mainPanel.add(station);
mainPanel.add(new JLabel());
mainPanel.add(cb);
lowerPanel.add(apply);
lowerPanel.add(cancel);
touchOnTimeFieldhour.setSize(10,10);
containerPanel.add(mainPanel);
containerPanel.add(lowerPanel);
add(containerPanel);
}
}

Don't create multiple JComboBoxes and then swap visibility. Instead use one JComboBox and create multiple combo box models, such as by using DefaultComboBoxModel<String>, and then swap out the model that it holds by using its setModel(...) method. Problem solved.
Note that using a variation on your code -- I'm not able to reproduce your problem:
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Date;
import javax.swing.AbstractAction;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class TestFoo2 {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndDisplayGui();
}
});
}
public static void createAndDisplayGui() {
final JFrame frame = new JFrame("Foo");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JButton button = new JButton(new AbstractAction("Press Me") {
#Override
public void actionPerformed(ActionEvent evt) {
TouchOn2 touchOn2 = new TouchOn2(frame);
touchOn2.setVisible(true);
}
});
JPanel panel = new JPanel();
panel.add(button);
frame.add(panel);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
#SuppressWarnings("serial")
class TouchOn2 extends JDialog {
private JPanel mainPanel;
#SuppressWarnings({ "rawtypes", "unused" })
public ArrayList Reader(String Txtfile) {
ArrayList<String> list = new ArrayList<>();
for (int i = 0; i < 100; i++) {
list.add("Data String Number " + (i + 1));
}
// return toString();
// !! return null;
return list;
}
public TouchOn2(Window owner) {
super(owner);
setPanels();
setModalityType(ModalityType.APPLICATION_MODAL);
setSize(400, 300);
setVisible(true);
}
#SuppressWarnings("unchecked")
public void setPanels() {
mainPanel = new JPanel(new GridLayout(0, 2));
JPanel containerPanel = new JPanel(new GridLayout(0, 1));
JLabel startDay = new JLabel("Day:");
final JTextField sDay = new JTextField();
JLabel startMonth = new JLabel("Month:");
final JTextField sMonth = new JTextField();
JLabel startYear = new JLabel("Year:");
final JTextField sYear = new JTextField("2015");
final String trainline = "";
JLabel touchOnTimehr = new JLabel("Time Hour: ");
JLabel touchOnTimem = new JLabel("Time Minute:");
JLabel station = new JLabel("Station: ");
final JTextField touchOnTimeFieldhour = new JTextField();
final JTextField touchOnTimeFieldminute = new JTextField();
JPanel lowerPanel = new JPanel(new FlowLayout());
ArrayList<String> stations = Reader("TrainLines.txt");
final JComboBox<String> cb = new JComboBox<>(
stations.toArray(new String[stations.size()]));
final JRadioButton belgrave = new JRadioButton("Belgrave Line");
belgrave.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
final JRadioButton glenwaverly = new JRadioButton("Glen Waverly Line");
glenwaverly.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
ButtonGroup bG = new ButtonGroup();
JButton apply = new JButton("Touch on");
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
dispose();
}
});
apply.addActionListener(new ActionListener() {
#SuppressWarnings("unused")
public void actionPerformed(ActionEvent e) {
String timestamp = new java.text.SimpleDateFormat("dd/MM/yyyy")
.format(new Date());
String day = sDay.getText();
String month = sMonth.getText();
String year = sYear.getText();
String hour = touchOnTimeFieldhour.getText();
String minute = touchOnTimeFieldminute.getText();
if (belgrave.isSelected()) {
// !! ***** note you're shadowing variables here!!!! ****
String trainline = belgrave.getText();
}
if (glenwaverly.isSelected()) {
// !! and here too
String trainline = glenwaverly.getText();
}
System.out.println(trainline);
}
});
cb.setVisible(true);
bG.add(belgrave);
bG.add(glenwaverly);
mainPanel.add(startDay);
mainPanel.add(sDay);
mainPanel.add(startMonth);
mainPanel.add(sMonth);
mainPanel.add(startYear);
mainPanel.add(sYear);
mainPanel.add(touchOnTimehr);
mainPanel.add(touchOnTimeFieldhour);
mainPanel.add(touchOnTimem);
mainPanel.add(touchOnTimeFieldminute);
mainPanel.add(belgrave);
mainPanel.add(glenwaverly);
mainPanel.add(station);
mainPanel.add(new JLabel());
mainPanel.add(cb);
lowerPanel.add(apply);
lowerPanel.add(cancel);
touchOnTimeFieldhour.setSize(10, 10);
containerPanel.add(mainPanel);
containerPanel.add(lowerPanel);
add(containerPanel);
}
}

How to pass an object argument to a method called in actionPerformed?

I am writing a stock control system program for a school project. This is the last thing I need to do, but seeing as I am a relative Java noob, I kindly request your assistance.
I have a DisplayRecord class, which is created by taking String input from a "search" JTextField in the Search class, finding the Object (Product p) it's linked to, and passing it to the displayRecord method. This part works perfectly.
I want to take that Product p and pass it to the EditProduct class or the DeleteRecord class (depending on the JButton pressed) so the user can then edit the Name, Quantity or Cost of that same Product. Here are my DisplayRecord, EditProduct and DeleteRecord classes. I have no idea what to do.
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.ArrayList;
public class DisplayRecord extends JFrame implements ActionListener {
final private StockList stocks;
final private ArrayList<Product> list;
JFrame showWindow;
private JPanel top, bot;
private JPanel barcodePanel1 = new JPanel();
private JPanel barcodePanel2 = new JPanel();
private JPanel namePanel1 = new JPanel();
private JPanel namePanel2 = new JPanel();
private JPanel descPanel1 = new JPanel();
private JPanel descPanel2 = new JPanel();
private JPanel compPanel1 = new JPanel();
private JPanel compPanel2 = new JPanel();
private JPanel ratingPanel1 = new JPanel();
private JPanel ratingPanel2 = new JPanel();
private JPanel costPanel1 = new JPanel();
private JPanel costPanel2 = new JPanel();
private JPanel quantityPanel1 = new JPanel();
private JPanel quantityPanel2 = new JPanel();
private JLabel barcodeLabel = new JLabel();
private JLabel nameLabel = new JLabel();
private JLabel descLabel = new JLabel();
private JLabel compLabel = new JLabel();
private JLabel ratingLabel = new JLabel();
private JLabel costLabel = new JLabel();
private JLabel quantityLabel = new JLabel();
private GridLayout displayLayout;
JButton edit = new JButton("Edit");
JButton backToMenu = new JButton("Back to Menu");
JButton delete = new JButton("Delete");
public DisplayRecord() {
stocks = new StockList();
list = stocks.getList();
try {
stocks.load();
} catch (IOException ex) {
System.out.println("Cannot load file");
}
}
public void displayRecord(Product p) {
this.setTitle("Displaying one record");
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.setPreferredSize(new Dimension(500, 350));
top = new JPanel();
displayLayout = new GridLayout(7, 2, 2, 2);
top.setLayout(displayLayout);
top.setBorder(BorderFactory.createEmptyBorder(5, 20, 5, 5));
bot = new JPanel();
bot.setLayout(new BoxLayout(bot, BoxLayout.LINE_AXIS));
bot.add(Box.createHorizontalGlue());
bot.setBorder(BorderFactory.createEmptyBorder(20, 5, 5, 5));
barcodeLabel.setText("Barcode: ");
nameLabel.setText("Name: ");
descLabel.setText("Description: ");
compLabel.setText("Developer: ");
ratingLabel.setText("EU Rating: ");
costLabel.setText("Cost: ");
quantityLabel.setText("Quantity in Stock: ");
JLabel barcodeField = new JLabel(Long.toString(p.getBarcode()));
JLabel nameField = new JLabel(p.getName());
JLabel descField = new JLabel(p.getDesc());
JLabel compField = new JLabel(p.getCompany());
JLabel ratingField = new JLabel(p.getRating());
JLabel costField = new JLabel(Double.toString(p.getCost()));
JLabel quantityField = new JLabel(Integer.toString(p.getQuantity()));
barcodePanel1.add(barcodeLabel);
barcodePanel1.setBorder(BorderFactory.createLineBorder(Color.black));
barcodePanel2.add(barcodeField); barcodePanel2.setBorder(BorderFactory.createLineBorder(Color.black));
namePanel1.add(nameLabel);
namePanel1.setBorder(BorderFactory.createLineBorder(Color.black));
namePanel2.add(nameField);
namePanel2.setBorder(BorderFactory.createLineBorder(Color.black));
descPanel1.add(descLabel);
descPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
descPanel2.add(descField);
descPanel2.setBorder(BorderFactory.createLineBorder(Color.black));
compPanel1.add(compLabel);
compPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
compPanel2.add(compField);
compPanel2.setBorder(BorderFactory.createLineBorder(Color.black));
ratingPanel1.add(ratingLabel);
ratingPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
ratingPanel2.add(ratingField);
ratingPanel2.setBorder(BorderFactory.createLineBorder(Color.black));
costPanel1.add(costLabel);
costPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
costPanel2.add(costField);
costPanel2.setBorder(BorderFactory.createLineBorder(Color.black));
quantityPanel1.add(quantityLabel);
quantityPanel1.setBorder(BorderFactory.createLineBorder(Color.black));
quantityPanel2.add(quantityField);
quantityPanel2.setBorder(BorderFactory.createLineBorder(Color.black));
top.add(barcodePanel1);
top.add(barcodePanel2);
top.add(namePanel1);
top.add(namePanel2);
top.add(descPanel1);
top.add(descPanel2);
top.add(compPanel1);
top.add(compPanel2);
top.add(ratingPanel1);
top.add(ratingPanel2);
top.add(costPanel1);
top.add(costPanel2);
top.add(quantityPanel1);
top.add(quantityPanel2);
edit.addActionListener(this);
delete.addActionListener(this);
backToMenu.addActionListener(this);
bot.add(edit);
bot.add(Box.createRigidArea(new Dimension(10, 0)));
bot.add(delete);
bot.add(Box.createRigidArea(new Dimension(10, 0)));
bot.add(backToMenu);
this.add(top);
this.add(bot, BorderLayout.SOUTH);
this.setLocationRelativeTo(null);
this.pack();
this.setVisible(true);
}
#Override
public void actionPerformed(ActionEvent e) { // here is where I'd LIKE to pass Product p as parameter but obviously that's not a thing
if (e.getSource() == edit) {
// EditProduct ed = new EditProduct(); <- hypothetical!
// ed.editProduct(p);
} else if (e.getSource() == delete) {
// DeleteRecord del = new DeleteRecord(); <- hypothetical!
// del.deleteRecord(p);
} else if (e.getSource() == backToMenu) {
new CreateDisplay();
this.dispose();
}
}
}
My EditProduct class:
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.util.ArrayList;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class EditProduct extends JFrame implements FocusListener, ActionListener {
final private StockList stocks;
final private ArrayList<Product> list;
JPanel top, bot;
JLabel nameLabel, costLabel, quantityLabel = new JLabel();
JTextField nameField, costField, quantityField = new JTextField();
JButton save, quit = new JButton();
private GridLayout topLayout;
public EditProduct() {
stocks = new StockList();
list = stocks.getList();
}
public void editProduct(Product p) {
this.setTitle("Editing a Product");
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.setPreferredSize(new Dimension(500, 250));
top = new JPanel();
topLayout = new GridLayout(3, 2, 5, 5);
top.setBorder(BorderFactory.createEmptyBorder(5, 20, 5, 5));
top.setLayout(topLayout);
bot = new JPanel();
bot.setLayout(new BoxLayout(bot, BoxLayout.LINE_AXIS));
bot.add(Box.createHorizontalGlue());
bot.setBorder(BorderFactory.createEmptyBorder(20, 5, 5, 5));
nameLabel.setText("Name: ");
costLabel.setText("Cost: ");
quantityLabel.setText("Quantity: ");
top.add(nameLabel);
top.add(costLabel);
top.add(quantityLabel);
nameField = new JTextField(p.getName());
costField = new JTextField(String.valueOf(p.getCost()));
quantityField = new JTextField(p.getQuantity());
nameField.addFocusListener(this);
costField.addFocusListener(this);
quantityField.addFocusListener(this);
save.setText("Save");
save.addActionListener(this);
quit.setText("Quit");
quit.addActionListener(this);
bot.add(save);
bot.add(Box.createRigidArea(new Dimension(10, 0)));
bot.add(quit);
this.add(top);
this.add(bot, BorderLayout.SOUTH);
this.pack();
this.setLocationRelativeTo(null);
this.setVisible(true);
}
#Override
public void focusGained(FocusEvent e) {
if (e.getSource() == nameField) {
nameField.setText("");
} else if (e.getSource() == costField) {
costField.setText("");
} else if (e.getSource() == quantityField) {
quantityField.setText("");
}
}
#Override
public void focusLost(FocusEvent fe) {
//do nothing
}
#Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == save) {
String newName = nameField.getText();
double newCost = Double.parseDouble(costField.getText());
int newQty = Integer.parseInt(quantityField.getText());
stocks.editProduct(newName, newCost, newQty);
this.dispose();
JOptionPane.showMessageDialog(null, "Changes have been saved!", "Saved!", JOptionPane.PLAIN_MESSAGE);
} else if (e.getSource() == quit) {
}
}
}
Aaand the DeleteRecord class:
import java.util.ArrayList;
import javax.swing.JOptionPane;
public class DeleteRecord {
private StockList stocks;
private ArrayList<Product> list;
public DeleteRecord() {
stocks = new StockList();
list = stocks.getList();
}
public DeleteRecord(Product p) {
String title = "Are you sure you want to delete " + p.getName() + "?";
if (JOptionPane.showConfirmDialog(null, title, "Deleting...", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
stocks.deleteRecord(p);
} else {
new CreateDisplay();
}
}
}
I'm sorry for the massive post and text wall but I honestly have no idea where my problem is or how to work around this problem (and I'm also new to StackOverflow). Can anyone help me?

It seems to me that DisplayRecord can only display one Product at a time. If that is indeed the case, you can store that Product in a field and then access it from actionPerfomed().

Applet not appearing full

I just created an applet
public class HomeApplet extends JApplet {
private static final long serialVersionUID = -7650916407386219367L;
//Called when this applet is loaded into the browser.
public void init() {
//Execute a job on the event-dispatching thread; creating this applet's GUI.
// setSize(400, 400);
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
createGUI();
}
});
} catch (Exception e) {
System.err.println("createGUI didn't complete successfully");
}
}
private void createGUI() {
RconSection rconSection = new RconSection();
rconSection.setOpaque(true);
// CommandArea commandArea = new CommandArea();
// commandArea.setOpaque(true);
JTabbedPane tabbedPane = new JTabbedPane();
// tabbedPane.setSize(400, 400);
tabbedPane.addTab("Rcon Details", rconSection);
// tabbedPane.addTab("Commad Area", commandArea);
setContentPane(tabbedPane);
}
}
where the fisrt tab is:
package com.rcon;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import com.Bean.RconBean;
import com.util.Utility;
public class RconSection extends JPanel implements ActionListener{
/**
*
*/
private static final long serialVersionUID = -9021500288377975786L;
private static String TEST_COMMAND = "test";
private static String CLEAR_COMMAND = "clear";
private static JTextField ipText = new JTextField();
private static JTextField portText = new JTextField();
private static JTextField rPassText = new JTextField();
// private DynamicTree treePanel;
public RconSection() {
// super(new BorderLayout());
JLabel ip = new JLabel("IP");
JLabel port = new JLabel("Port");
JLabel rPass = new JLabel("Rcon Password");
JButton testButton = new JButton("Test");
testButton.setActionCommand(TEST_COMMAND);
testButton.addActionListener(this);
JButton clearButton = new JButton("Clear");
clearButton.setActionCommand(CLEAR_COMMAND);
clearButton.addActionListener(this);
JPanel panel = new JPanel(new GridLayout(3,2));
panel.add(ip);
panel.add(ipText);
panel.add(port);
panel.add(portText);
panel.add(rPass);
panel.add(rPassText);
JPanel panel1 = new JPanel(new GridLayout(1,3));
panel1.add(testButton);
panel1.add(clearButton);
add(panel);
add(panel1);
// add(panel, BorderLayout.NORTH);
// add(panel1, BorderLayout.SOUTH);
}
#Override
public void actionPerformed(ActionEvent arg0) {
if(arg0.getActionCommand().equals(TEST_COMMAND)){
String ip = ipText.getText().trim();
if(!Utility.checkIp(ip)){
ipText.requestFocusInWindow();
ipText.selectAll();
JOptionPane.showMessageDialog(this,"Invalid Ip!!!");
return;
}
String port = portText.getText().trim();
if(port.equals("") || !Utility.isIntNumber(port)){
portText.requestFocusInWindow();
portText.selectAll();
JOptionPane.showMessageDialog(this,"Invalid Port!!!");
return;
}
String pass = rPassText.getText().trim();
if(pass.equals("")){
rPassText.requestFocusInWindow();
rPassText.selectAll();
JOptionPane.showMessageDialog(this,"Enter Rcon Password!!!");
return;
}
RconBean rBean = RconBean.getBean();
rBean.setIp(ip);
rBean.setPassword(pass);
rBean.setPort(Integer.parseInt(port));
if(!Utility.testConnection()){
rPassText.requestFocusInWindow();
rPassText.selectAll();
JOptionPane.showMessageDialog(this,"Invalid Rcon!!!");
return;
}else{
JOptionPane.showMessageDialog(this,"Correct Rcon!!!");
return;
}
}
else if(arg0.getActionCommand().equals(CLEAR_COMMAND)){
ipText.setText("");
portText.setText("");
rPassText.setText("");
}
}
}
it appears as
is has cropped some data how to display it full and make the applet non resizable as well. i tried setSize(400, 400); but it didnt helped the inner area remains the same and outer boundaries increases

Here's another variation on your layout. Using #Andrew's tag-in-source method, it's easy to test from the command line:
$ /usr/bin/appletviewer HomeApplet.java
// <applet code='HomeApplet' width='400' height='200'></applet>
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class HomeApplet extends JApplet {
#Override
public void init() {
try {
SwingUtilities.invokeAndWait(new Runnable() {
#Override
public void run() {
createGUI();
}
});
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
private void createGUI() {
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.addTab("Rcon1", new RconSection());
tabbedPane.addTab("Rcon2", new RconSection());
this.add(tabbedPane);
}
private static class RconSection extends JPanel implements ActionListener {
private static final String TEST_COMMAND = "test";
private static final String CLEAR_COMMAND = "clear";
private JTextField ipText = new JTextField();
private JTextField portText = new JTextField();
private JTextField rPassText = new JTextField();
public RconSection() {
super(new BorderLayout());
JLabel ip = new JLabel("IP");
JLabel port = new JLabel("Port");
JLabel rPass = new JLabel("Rcon Password");
JButton testButton = new JButton("Test");
testButton.setActionCommand(TEST_COMMAND);
testButton.addActionListener(this);
JButton clearButton = new JButton("Clear");
clearButton.setActionCommand(CLEAR_COMMAND);
clearButton.addActionListener(this);
JPanel panel = new JPanel(new GridLayout(3, 2));
panel.add(ip);
panel.add(ipText);
panel.add(port);
panel.add(portText);
panel.add(rPass);
panel.add(rPassText);
JPanel buttons = new JPanel(); // default FlowLayout
buttons.add(testButton);
buttons.add(clearButton);
add(panel, BorderLayout.NORTH);
add(buttons, BorderLayout.SOUTH);
}
#Override
public void actionPerformed(ActionEvent e) {
System.out.println(e);
}
}
}

As I mentioned in a comment, this question is really about how to layout components in a container. This example presumes you wish to add the extra space to the text fields and labels. The size of the applet is set in the HTML.
200x130 200x150
/*
<applet
code='FixedSizeLayout'
width='200'
height='150'>
</applet>
*/
import java.awt.*;
import javax.swing.*;
public class FixedSizeLayout extends JApplet {
public void init() {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
initGui();
}
});
}
private void initGui() {
JTabbedPane tb = new JTabbedPane();
tb.addTab("Rcon Details", new RconSection());
setContentPane(tb);
validate();
}
}
class RconSection extends JPanel {
private static String TEST_COMMAND = "test";
private static String CLEAR_COMMAND = "clear";
private static JTextField ipText = new JTextField();
private static JTextField portText = new JTextField();
private static JTextField rPassText = new JTextField();
public RconSection() {
super(new BorderLayout(3,3));
JLabel ip = new JLabel("IP");
JLabel port = new JLabel("Port");
JLabel rPass = new JLabel("Rcon Password");
JButton testButton = new JButton("Test");
testButton.setActionCommand(TEST_COMMAND);
JButton clearButton = new JButton("Clear");
clearButton.setActionCommand(CLEAR_COMMAND);
JPanel panel = new JPanel(new GridLayout(3,2));
panel.add(ip);
panel.add(ipText);
panel.add(port);
panel.add(portText);
panel.add(rPass);
panel.add(rPassText);
JPanel panel1 = new JPanel(new FlowLayout(FlowLayout.CENTER,5,5));
panel1.add(testButton);
panel1.add(clearButton);
add(panel, BorderLayout.CENTER);
add(panel1, BorderLayout.SOUTH);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Container c = new RconSection();
JOptionPane.showMessageDialog(null, c);
}
});
}
}

Size of applet viewer does not depend on your code.

JApplet is not window, so in java code you can't write japplet dimensions. You have to change run settings. I don't know where exactly are in other ide's, but in Eclipse you can change dimensions in Project Properties -> Run/Debug settings -> click on your launch configurations file (for me there were only 1 - main class) -> edit -> Parameters. There you can choose width and height for your applet. save changes and you are good to go

Develop Reference

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

Add images in an array by selecting images from file chooser - java

Problem is in this line ImageIcon tImage=new ImageIcon("selectedFile.getName().toString()"); you need to remove double-quotes in order to read actual file name. ImageIcon tImage=new ImageIcon(selectedFile.getName().toString()); Hope this helps.

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Applet not appearing full

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