A component can have two parent?

[andric(www.oksbt.com)]

in fact, i wish a JCheckBox displayed in two Container, and they have
same select status.

thanks in advance.

andric.

 

[Knute Johnson]

in fact, i wish a JCheckBox displayed in two Container, and they have
same select status.

thanks in advance.

andric.

No.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

final JCheckBox cb1 = new JCheckBox("First");
final JCheckBox cb2 = new JCheckBox("Second");

cb1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
cb2.setSelected(cb1.isSelected());
}
});

cb2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
cb1.setSelected(cb2.isSelected());
}
});

f.add(cb1,BorderLayout.NORTH);
f.add(cb2,BorderLayout.SOUTH);

f.pack();
f.setVisible(true);
}
});
}
}

 

[Daniele Futtorovic]

public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Action a = new AbstractAction("Bite me!"){
public void actionPerformed(ActionEvent e){
System.out.println("actionPerformed");
}
};

a.putValue(Action.SELECTED_KEY, new Object());

final JCheckBox cb1 = new JCheckBox(a);
final JCheckBox cb2 = new JCheckBox(a);

f.add(cb1,BorderLayout.NORTH);
f.add(cb2,BorderLayout.SOUTH);

f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}


@see doc:
<http://java.sun.com/javase/6/docs/api/javax/swing/Action.html>