This is my button Code onclick i want my program to wait for the user to click one JPanel and as the user clicks the JPanel it should print its name on console.
This button code is not showing the output
JPopupMenu popupMenu_1 = new JPopupMenu();
JMenuItem mntmOneToOne = new JMenuItem("One to One");
mntmOneToOne.setIcon(new ImageIcon("C:\\Users\\Ashad\\Desktop\\oneToone.png"));
popupMenu_1.add(mntmOneToOne);
OneToOne.addMouseListener(new MouseAdapter()
{
#Override
public void mouseClicked(MouseEvent arg0)
{
MouseListener Listen= new MouseAdapter()
{
public void mousePressed(MouseEvent me)
{
String name=new String();
JPanel panel = (JPanel) me.getSource();
// name = panel.getName();
System.out.println(panel.getName());
}
};
}
});
for better help sooner post an SSCCE, short,
runnable, compilable,
because works in my SSCCE, and the answer to
This is my button Code onclick i want my program to wait for the user
to click one JPanel and as the user clicks the JPanel it should print
its name on console.
issue must be in rest of your code,
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.LineBorder;
public class MyGridLayout {
public MyGridLayout() {
JPanel bPanel = new JPanel();
bPanel.setLayout(new GridLayout(10, 10, 2, 2));
for (int row = 0; row < 10; row++) {
for (int col = 0; col < 10; col++) {
JPanel b = new JPanel() {
private static final long serialVersionUID = 1L;
#Override
public Dimension getPreferredSize() {
return new Dimension(20, 20);
}
};
b.putClientProperty("column", row);
b.putClientProperty("row", col);
b.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
JPanel btn = (JPanel) e.getSource();
System.out.println("clicked column " + btn.getClientProperty("column")
+ ", row " + btn.getClientProperty("row"));
}
});
b.setBorder(new LineBorder(Color.blue, 1));
bPanel.add(b);
}
}
JFrame frame = new JFrame("PutClientProperty Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(bPanel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
MyGridLayout myGridLayout = new MyGridLayout();
}
});
}
}
You declared a MouseAdapter in your MouseListener mouseClicked method which just sits there and does exactly nothing because nothing is done with it. If you want to add a MouseListener to a panel do the following:
panel.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent arg0) {
JPanel panel = (JPanel) arg0.getSource();
System.out.println(panel.getName());
}
});
Related
I got this code witch creates a clickable grid that shows the mouse position, altough i am not able to get the position in the grid in where the mouse is clicked, trying to be both X and Y position. Any ideas? This is how the grid looks:
Code:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.Border;
import javax.swing.border.MatteBorder;
public class TestGrid02 {
public TestGrid02() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
private static final int ROWS = 20;
private static final int COLUMNS = 20;
private static GridBagConstraints gbc;
public TestPane() {
setLayout(new GridBagLayout());
gbc = new GridBagConstraints();
for (int row = 0; row < ROWS; row++) {
for (int col = 0; col < COLUMNS; col++) {
gbc.gridx = col;
gbc.gridy = row;
CellPane cellPane = new CellPane();
Border border = null;
if (row < ROWS-1) {
if (col < COLUMNS-1) {
border = new MatteBorder(1, 1, 0, 0, Color.GRAY);
} else {
border = new MatteBorder(1, 1, 0, 1, Color.GRAY);
}
} else {
border = new MatteBorder(1, 1, 1, 0, Color.GRAY);
}
cellPane.setBorder(border);
add(cellPane, gbc);
}
}
}
}
public class CellPane extends JPanel {
private Color defaultBackground;
public CellPane() {
addMouseListener(new MouseAdapter() {
#Override
public void mouseEntered(MouseEvent e) {
defaultBackground = getBackground();
setBackground(Color.RED);
}
#Override
public void mouseExited(MouseEvent e) {
setBackground(defaultBackground);
}
#Override
public void mouseClicked(MouseEvent e){
//Here is where it is supposed to be
}
});
}
#Override
public Dimension getPreferredSize() {
return new Dimension(30, 30);
}
}
}
In the CellPane class, witch is intended to be the one that listens to the mouse it is supposed to be the function that i need, at the mouseClicked listener, however i have tried with e.getX() or e.getLocationOnScreen() and these values were changing everytime i click in the same grid.
Well, that looks familiar 🤣
So, the basic idea would be to pass in the cell it's coordinates (ie, row/column) value via the constructor, for example...
public class CellPane extends JPanel {
private Color defaultBackground;
private Point cellCoordinate;
public CellPane(Point cellCoordinate) {
this.cellCoordinate = cellCoordinate;
addMouseListener(new MouseAdapter() {
#Override
public void mouseEntered(MouseEvent e) {
defaultBackground = getBackground();
setBackground(Color.RED);
}
#Override
public void mouseExited(MouseEvent e) {
setBackground(defaultBackground);
}
#Override
public void mouseClicked(MouseEvent e) {
//Here is where it is supposed to be
System.out.println("Did click cell # " + getCellCoordinate().x + "x" + getCellCoordinate().y);
}
});
}
public Point getCellCoordinate() {
return cellCoordinate;
}
#Override
public Dimension getPreferredSize() {
return new Dimension(30, 30);
}
}
The cell itself doesn't really care, not does it have any reasonable information available to it to determine how it's been laid out, so your best bet is to "tell" it the information you want it to represent.
For me, I'd just pass in the GridBagLayout row/col information, for example...
gbc.gridx = col;
gbc.gridy = row;
CellPane cellPane = new CellPane(new Point(col, row));
This way you remove all concept (and the issues associated with it) of how the cell is laid out
This approach (using buttons and action listeners) is better IMO. It uses the getButtonRowCol method to return a string indicating the button's location in an array (the buttonArray).
Use b.setBorderPainted(false); (uncomment that code line) to get rid of the borders around each button. Look to the values passed to the constructor of the GridLayout to remove the space between buttons.
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
public class GameGridLayout {
int size = 40;
int iconSize = 10;
JButton[][] buttonArray = new JButton[size][size];
ActionListener actionListener;
JLabel output = new JLabel("Click somewhere on the GUI");
GameGridLayout() {
JPanel gui = new JPanel(new BorderLayout(2,2));
gui.setBorder(new EmptyBorder(4,4,4,4));
gui.add(output,BorderLayout.PAGE_END);
JPanel gameContainer = new JPanel(new GridLayout(0,size,2,2));
gui.add(gameContainer);
actionListener = e -> output.setText(getButtonRowCol((JButton)e.getSource()));
for (int ii=0; ii<size*size; ii++) {
JButton b = getButton();
gameContainer.add(b);
buttonArray[ii%size][ii/size] = b;
}
JFrame f = new JFrame("GameGridLayout");
f.add(gui);
f.pack();
f.setMinimumSize(f.getSize());
f.setLocationByPlatform(true);
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setVisible(true);
}
private String getButtonRowCol(JButton button) {
StringBuilder sb = new StringBuilder();
for (int xx=0; xx<size; xx++) {
for (int yy=0; yy<size; yy++) {
if (button.equals(buttonArray[xx][yy])) {
sb.append("User selected button at: ");
sb.append(xx+1);
sb.append(",");
sb.append(yy+1);
break;
}
}
}
return sb.toString();
}
private JButton getButton() {
JButton b = new JButton();
b.setIcon(new ImageIcon(
new BufferedImage(iconSize,iconSize,BufferedImage.TYPE_INT_ARGB)));
b.setRolloverIcon(new ImageIcon(
new BufferedImage(iconSize,iconSize,BufferedImage.TYPE_INT_RGB)));
b.setMargin(new Insets(0,0,0,0));
//b.setBorderPainted(false);
b.setContentAreaFilled(false);
b.addActionListener(actionListener);
return b;
}
public static void main(String[] args) {
Runnable r = () -> new GameGridLayout();
SwingUtilities.invokeLater(r);
}
}
I'm quite new to java here , and right now i'm working on a program which involves the following actions. Lets say i have a 3 X 3 grid of JLabel. How do i load an ImageIcon and then move it from on label to another. For example, say each label is named as label_1 to label_9, and the imageicon is on label_2 . When i click on label_3,imageicon it should go to label_3
Very quick example which you can adapt to your needs.
import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
public class Test extends JFrame {
public Test() {
JPanel container = new JPanel(new GridLayout(3, 3));
for (int i = 0; i < 9; i++) {
JLabel label = new JLabel("Label" + i);
label.setPreferredSize(new Dimension(100, 100));
label.setBorder(BorderFactory.createLineBorder(Color.black));
label.addMouseListener(new MouseListener() {
#Override
public void mouseClicked(MouseEvent e) {
Icon icon = UIManager.getIcon("OptionPane.informationIcon");
JLabel clickedLabel = (JLabel) e.getSource();
Container parent = clickedLabel.getParent();
clearIcons(parent);
clickedLabel.setIcon(icon);
}
private void clearIcons(Container parent) {
Component[] components = parent.getComponents();
for (Component component : components) {
((JLabel) component).setIcon(null);
}
}
#Override
public void mousePressed(MouseEvent e) {
}
#Override
public void mouseReleased(MouseEvent e) {
}
#Override
public void mouseEntered(MouseEvent e) {
}
#Override
public void mouseExited(MouseEvent e) {
}
});
container.add(label);
}
add(container);
}
public static void main(String[] args) {
Test frame = new Test();
frame.setVisible(true);
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.pack();
}
}
Result should be following:
Hi I've there a little problem: What I want is to delay the appearance of JLabels in a JDialog-Window, in terms of that the first line of JLabels shoud come out and then two seconds later the second line of Jlabels etc.
I've tried something with Windowlistener,the doClick()-Method etc., bu every time the Jdialog revalidates all of its panels AT ONCE and shows them without any delaying!
Please help me(Just copy the code below and try out)!
package footballQuestioner;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
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.border.EtchedBorder;
import javax.swing.border.TitledBorder;
public class attempter {
public static void main(String[] args) throws InterruptedException {
JDialog dialog = new Punkte();
}
}
class Punkte extends JDialog {
private JPanel screenPanel = new JPanel(new GridLayout(4, 1));
private JButton button = new JButton();
private int i = 1;
private class WindowHandler implements WindowListener {
#Override
public void windowActivated(WindowEvent e) {
}
#Override
public void windowClosed(WindowEvent e) {
}
#Override
public void windowClosing(WindowEvent e) {
}
#Override
public void windowDeactivated(WindowEvent e) {
}
#Override
public void windowDeiconified(WindowEvent e) {
}
#Override
public void windowIconified(WindowEvent e) {
}
#Override
public void windowOpened(WindowEvent e) {
button.doClick(1000);
button.doClick(1000);
button.doClick(1000);
button.doClick(); // here im trying to delay the appearance of the
// JLabels....
}
}
private class ButtonHandler implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
switch (i) {
case 1:
settingUpPanel(getPanelFromScreenPanel(i), "Right", new Color(
102, 205, 0));
settingUpPanel(getPanelFromScreenPanel(i), "Wrong", Color.RED);
break;
case 2:
settingUpPanel(getPanelFromScreenPanel(i), "Trefferquote",
Color.YELLOW);
break;
case 3:
settingUpPanel(getPanelFromScreenPanel(i), "Ausgezeichnet",
Color.BLUE);
break;
}
System.out.println(i);
i++;
}
}
public Punkte() {
button.addActionListener(new ButtonHandler());
addWindowListener(new WindowHandler());
setModal(true);
setResizable(true);
setLayout(new BorderLayout());
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
settingUpScreenPanel();
add(screenPanel);
setSize(1200, 1000);
centeringWindow();
setVisible(true);
}
private void settingUpScreenPanel() {
JPanel titlePanel = new JPanel(new GridBagLayout());
JPanel rightWrongCountPanel = new JPanel(new GridLayout(1, 2));
JPanel shareOfRightQuestions = new JPanel(new GridBagLayout());
JPanel grade = new JPanel(new GridBagLayout());
settingUpPanel(titlePanel, "Result", Color.BLACK);
// settingUpPanel(rightWrongCountPanel,
// "Right: "+numberOfRightAnsers+"/6",new Color(102,205,0));
// settingUpPanel(rightWrongCountPanel,
// "Wrong: "+(6-numberOfRightAnsers)+"/6", Color.RED);
// settingUpPanel(shareOfRightQuestions,
// "Trefferquote: "+(numberOfRightAnsers*100/6)+"%",Color.YELLOW);
// settingUpPanel(summaSummarum,
// getBufferedImage("footballQuestioner/Strich.png"));
// settingUpPanel(grade,"Aushezeichnet", Color.BLUE);
borderingJPanel(screenPanel, null, null);
titlePanel.setOpaque(false);
rightWrongCountPanel.setOpaque(false);
shareOfRightQuestions.setOpaque(false);
grade.setOpaque(false);
screenPanel.add(titlePanel);
screenPanel.add(rightWrongCountPanel);
screenPanel.add(shareOfRightQuestions);
screenPanel.add(grade);
}
private void settingUpPanel(JComponent panel, String string, Color color) {
Font font = new Font("Rockwell Extra Bold", Font.PLAIN, 65);
JPanel innerPanel = new JPanel(new GridBagLayout());
JLabel label = new JLabel(string);
label.setForeground(color);
label.setFont(font);
innerPanel.add(label);
innerPanel.setOpaque(false);
panel.add(innerPanel);
panel.validate();
panel.repaint();
}
public JPanel getPanelFromScreenPanel(int numberOfPanel) {
JPanel screenPanel = (JPanel) getContentPane().getComponent(0);
JPanel labelPanel = (JPanel) screenPanel.getComponent(numberOfPanel);
return labelPanel;
}
public void centeringWindow() {
Dimension dimension = Toolkit.getDefaultToolkit().getScreenSize();
int x;
int y;
x = (int) (dimension.getWidth() - getWidth()) / 2;
y = (int) (dimension.getHeight() - getHeight()) / 2;
setLocation(x, y);
}
public void borderingJPanel(JComponent panel, String jPanelname,
String fontStyle) {
Font font = new Font(fontStyle, Font.BOLD + Font.ITALIC, 12);
if (jPanelname != null) {
panel.setBorder(BorderFactory.createTitledBorder(BorderFactory
.createEtchedBorder(EtchedBorder.LOWERED, Color.GRAY,
Color.WHITE), jPanelname,
TitledBorder.DEFAULT_JUSTIFICATION,
TitledBorder.DEFAULT_POSITION, font));
} else if (jPanelname == null || fontStyle == null) {
panel.setBorder(BorderFactory.createTitledBorder(BorderFactory
.createEtchedBorder(EtchedBorder.LOWERED, Color.BLACK,
Color.WHITE)));
}
panel.setOpaque(false);
}
}
This is a really good use case for javax.swing.Timer...
This will allow you to schedule a callback, at a regular interval with which you can perform an action, safely on the UI.
private class WindowHandler extends WindowAdapter {
#Override
public void windowOpened(WindowEvent e) {
System.out.println("...");
Timer timer = new Timer(2000, new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
JPanel panel = getPanelFromScreenPanel(1);
panel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
for (int index = 0; index < 100; index++) {
panel.add(new JLabel(Integer.toString(index)), gbc);
}
panel.revalidate();
}
});
timer.start();
timer.setRepeats(false);
}
}
Now, if you wanted to do a series of actions, separated by the interval, you could use a counter to determine the number of "ticks" that have occurred and take appropriate action...
private class WindowHandler extends WindowAdapter {
#Override
public void windowOpened(WindowEvent e) {
System.out.println("...");
Timer timer = new Timer(2000, new ActionListener() {
private int counter = 0;
private int maxActions = 10;
#Override
public void actionPerformed(ActionEvent e) {
switch (counter) {
case 0:
// Action for case 0...
break;
case 1:
// Action for case 1...
break;
.
.
.
}
counter++;
if (counter >= maxActions) {
((Timer)e.getSource()).stop();
}
}
});
timer.start();
}
}
Take a look at How to use Swing Timers for more details
I'm creating a ToolBar with one JButton and some JCheckBoxs to hide or show columns from a JTable.
The JButton main purpose is to once clicked reset all the other JCheckBox in the ToolBar to either all checked or all unchecked. Actually I pretend to once reset is clicked to check all of them.
I can create them and place them, no problems here.
My problem is how to make the JButton once clicked to reset all the JCheckBox in the ToolBar.
Here is my code, where I create them and add the Action.
final JToolBar toolBarTop = new JToolBar();
// The Reset Button
toolBarTop.add(new JButton(new AbstractAction("Reset") {
#Override
public void actionPerformed(ActionEvent e) {
columnModel.setAllColumnsVisible();
}
}));
// Create a JCheckBox for each column
for(int i = 0; i < labelsCheckBox.size(); i++)
{
final int index = i;
toolBarTop.add(new JCheckBox(new AbstractAction(labelsCheckBox.get(i)) {
#Override
public void actionPerformed(ActionEvent e) {
TableColumn column = columnModel.getColumnByModelIndex(index);
boolean visible = columnModel.isColumnVisible(column);
columnModel.setColumnVisible(column, !visible);
}
}));
}
Create an ArrayList<JCheckBox> class field.
Fill it in the for(int i = 0; i < labelsCheckBox.size(); i++) for loop with the JCheckBoxes that you are creating.
Iterate through this collection setting the state of the JCheckBoxes in your Button's Action.
I wonder if you should be using a JToggleButton for your button.
My problem is how to make the JButton once clicked to reset all the
JCheckBox in the ToolBar.[...] Actually I pretend to once reset is clicked to check all of them.
Try iterating over toolBarTop components asking each one if it's an instance of JCheckBox. If so, set selected to true:
JButton reset = new JButton("Reset");
reset.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
for(Component c : toolBarTop.getComponents()){
if(c instanceof JCheckBox){
JCheckBox checkBox = (JCheckBox) c;
checkBox.setSelected(true);
}
}
}
});
Here's a complete SSCCE to test it:
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.SwingUtilities;
public class Demo {
private void initGUI(){
final JToolBar toolBarTop = new JToolBar();
toolBarTop.add(new JCheckBox("Check 1"));
toolBarTop.add(new JCheckBox("Check 2"));
toolBarTop.add(new JCheckBox("Check 3"));
JButton reset = new JButton("Reset");
reset.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
for(Component c : toolBarTop.getComponents()){
if(c instanceof JCheckBox){
JCheckBox checkBox = (JCheckBox) c;
checkBox.setSelected(true);
}
}
}
});
toolBarTop.add(reset);
JPanel content = new JPanel(new FlowLayout());
content.setPreferredSize(new Dimension(300, 200));
content.add(toolBarTop);
JFrame frame = new JFrame("Demo");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setContentPane(content);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new Demo().initGUI();
}
});
}
}
My question is when the number is get from the an arraylist, for example
JNumber.size()=10;
for(int a=0;a<JNumber.size();a++)
{
btnNumber= new JNumber(""+(a+1));
btnNumber.setPreferredSize(new Dimension(20, 10));
panel.setLayout(new GridLayout(10,10));
panel.add(btnNumber, BorderLayout.SOUTH);
}
Then how to return the number when the button is clicked?
Output:
Number 2 is clicked.
You can do this in an ActionListener.
Using the code given, this should work in your case:
If you want a text shown which is not only numeric then initialize the button with the specific text and set the actioncommand of the button to the actual number. (See below.)
btnNumber= new JNumber(""+(a+1));
btnNumber.setActionCommand(""+(a+1));
btnNumber.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JButton button = (JButton)evt.getSource();
int num = Integer.parseInt(button.getActionCommand());
System.out.println(num);
}
});
Here is a small example hope it helps. Basically just add JButtons to JPanel, add ActionListener to each JButton, add JPanel to JFrame, after clicking a button a println() will be executed with the ActionCommand of the JButton (+1 to #Pr0gr4mm3r for setActionCommand() usage):
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class ButtonsTest {
public ButtonsTest() {
initComponents();
}
private void initComponents() {
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel(new GridLayout(2, 2));//create gridlayput to hold buttons
ActionListener al = new ActionListener() {
#Override
public void actionPerformed(ActionEvent ae) {
//display action command of jbutton
String ac = ((JButton) ae.getSource()).getActionCommand();
System.out.println(ac);
//display full test in Jbutton
//String text = ((JButton) ae.getSource()).getText();
//System.out.println(text);
}
};
for (int i = 0; i < 4; i++) {
JButton b = new JButton("No: " + String.valueOf((i + 1)));
b.setActionCommand(String.valueOf((i + 1)));
b.addActionListener(al);
panel.add(b);
}
frame.add(panel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//set L&F and create UI on EDT
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
try {//set L&F
for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
// If Nimbus is not available, you can set the GUI to another look and feel.
}
//create UI
new ButtonsTest();
}
});
}
}
Declare btnNumber as final and add an ActionListener to it:
btnNumber.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Number " + btnNumber.getText() + " is clicked");
}
});