Java Example Program/ Sample Source Code
import java.awt.*;
import java.awt.event.*;
public class GetComponentExample {
public static void main(String[] args) {
Frame frame = new Frame("ComponentEventExample");
TextArea txtArea = new TextArea();
Checkbox checkbox1 = new Checkbox("Checkbox 1");
Checkbox checkbox2 = new Checkbox("Checkbox 2");
Panel p = new Panel();
p.add(checkbox1);
p.add(checkbox2);
frame.add(txtArea, BorderLayout.CENTER);
frame.add(checkbox1, BorderLayout.NORTH);
frame.add(checkbox2, BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
ComponentListener componentListener = new MyComponentListener();
frame.addComponentListener(componentListener);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
class MyComponentListener implements ComponentListener {
public void componentShown(ComponentEvent evt) {
System.out.println("componentShown");
}
public void componentHidden(ComponentEvent evt) {
System.out.println("componentHidden");
}
public void componentMoved(ComponentEvent evt) {
System.out.println("componentMoved");
}
public void componentResized(ComponentEvent evt) {
System.out.println("componentResized");
}
} |
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