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


Java JCheckBoxMenuItem Example

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

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