import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class JCheckBoxChangeListener {
public static void main(String args[]) {
JFrame frame = new JFrame("Iconizing CheckBox");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JCheckBox aCheckBox4 = new JCheckBox("Stuffed Crust");
// Define ChangeListener
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
AbstractButton abstractButton =
(AbstractButton)changeEvent.getSource();
ButtonModel buttonModel = abstractButton.getModel();
boolean armed = buttonModel.isArmed();
boolean pressed = buttonModel.isPressed();
boolean selected = buttonModel.isSelected();
System.out.println("Changed: " + armed + "/" + pressed + "/" +
selected);
}
};
aCheckBox4.addChangeListener(changeListener);
frame.add(aCheckBox4);
frame.setSize(300, 200);
frame.setVisible(true);
}
}
Changed: false/false/false
Changed: true/false/false
Changed: true/true/false
Changed: true/true/true
Changed: true/false/true
Changed: false/false/true