Java JCheckBox Events With ChangeListener

Chapter: Swing Last Updated: 02-10-2016 16:30:39 UTC

Program:

            /* ............... START ............... */
                
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 JavaJCheckBoxChangeListener {

	public static void main(String args[]) {
		JFrame frame = new JFrame("Iconizing CheckBox");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JCheckBox aCheckBox4 = new JCheckBox("Stuffed Crust");
		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);
	}
}

                /* ............... END ............... */
        

Output

Changed: false/false/false
Changed: false/false/false
Changed: false/false/false
Changed: true/false/false
Changed: true/true/false
Changed: true/true/true
Java JCheckBox Events With ChangeListener

Tags

JCheckBox Events With ChangeListener, Java, Swing

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