In this example we are going to see how to use Java JCheckBox Events With ChangeListener.
Java Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | 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 Main { 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); } } |
Output:
1 2 3 4 5 6 7 8 9 10 | Changed: false/false/false Changed: true/false/false Changed: true/true/false Changed: true/true/true Changed: true/false/true Changed: false/false/true Changed: false/false/true Changed: false/false/true |
