Java JCheckBoxMenuItem Example
Chapter:
Swing
Last Updated:
17-12-2016 08:43:46 UTC
Program:
/* ............... START ............... */
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.AbstractButton;
import javax.swing.Icon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
public class JavaCheckBoxMenuItem {
public static void main(final String args[]) {
JFrame frame = new JFrame("MenuSample Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JMenuBar menuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
fileMenu.setMnemonic(KeyEvent.VK_F);
menuBar.add(fileMenu);
JMenuItem newMenuItem = new JMenuItem("New", KeyEvent.VK_N);
fileMenu.add(newMenuItem);
JCheckBoxMenuItem menuitem1 = new JCheckBoxMenuItem("Menu Item 1");
menuitem1.setMnemonic(KeyEvent.VK_C);
fileMenu.add(menuitem1);
JCheckBoxMenuItem menuitem2 = new JCheckBoxMenuItem("Menu Item 2");
menuitem2.setMnemonic(KeyEvent.VK_C);
fileMenu.add(menuitem2);
ActionListener aListener = new ActionListener() {
public void actionPerformed(ActionEvent event) {
AbstractButton aButton = (AbstractButton) event.getSource();
boolean selected = aButton.getModel().isSelected();
String newLabel;
Icon newIcon;
if (selected) {
newLabel = "A";
} else {
newLabel = "B";
}
aButton.setText(newLabel);
}
};
menuitem1.addActionListener(aListener);
menuitem2.addActionListener(aListener);
frame.setJMenuBar(menuBar);
frame.setSize(350, 250);
frame.setVisible(true);
}
}
/* ............... END ............... */
Output
Notes:
-
The JCheckboxMenuItem class represents a check box which can be included in a menu. Selecting the check box in the menu changes control's state from on to off or from off to on.
Tags
JCheckBoxMenuItem Example, Java, Swing