A quick demonstration of checkbox menu items : Menu « Swing JFC « Java

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Java » Swing JFC » MenuScreenshots 
A quick demonstration of checkbox menu items
A quick demonstration of checkbox menu items
   
/*
Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly 
*/
// CheckBoxMenuItemExample.java
// A quick demonstration of checkbox menu items.
//

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ImageIcon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JTextPane;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.border.BevelBorder;

public class CheckBoxMenuItemExample extends JPanel {
  public JTextPane pane;

  public JMenuBar menuBar;

  public JToolBar toolBar;

  public CheckBoxMenuItemExample() {
    menuBar = new JMenuBar();
    JMenu justifyMenu = new JMenu("Justify");
    ActionListener actionPrinter = new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        try {
          pane.getStyledDocument().insertString(
              0,
              "Action [" + e.getActionCommand()
                  "] performed!\n"null);
        catch (Exception ex) {
          ex.printStackTrace();
        }
      }
    };
    JCheckBoxMenuItem leftJustify = new JCheckBoxMenuItem("Left",
        new ImageIcon("1.gif"));
    leftJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
    leftJustify.setAccelerator(KeyStroke.getKeyStroke('L', Toolkit
        .getDefaultToolkit().getMenuShortcutKeyMask()));
    leftJustify.addActionListener(actionPrinter);
    JCheckBoxMenuItem rightJustify = new JCheckBoxMenuItem("Right",
        new ImageIcon("2.gif"));
    rightJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
    rightJustify.setAccelerator(KeyStroke.getKeyStroke('R', Toolkit
        .getDefaultToolkit().getMenuShortcutKeyMask()));
    rightJustify.addActionListener(actionPrinter);
    JCheckBoxMenuItem centerJustify = new JCheckBoxMenuItem("Center",
        new ImageIcon("3.gif"));
    centerJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
    centerJustify.setAccelerator(KeyStroke.getKeyStroke('M', Toolkit
        .getDefaultToolkit().getMenuShortcutKeyMask()));
    centerJustify.addActionListener(actionPrinter);
    JCheckBoxMenuItem fullJustify = new JCheckBoxMenuItem("Full",
        new ImageIcon("4.gif"));
    fullJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
    fullJustify.setAccelerator(KeyStroke.getKeyStroke('F', Toolkit
        .getDefaultToolkit().getMenuShortcutKeyMask()));
    fullJustify.addActionListener(actionPrinter);

    justifyMenu.add(leftJustify);
    justifyMenu.add(rightJustify);
    justifyMenu.add(centerJustify);
    justifyMenu.add(fullJustify);

    menuBar.add(justifyMenu);
    menuBar.setBorder(new BevelBorder(BevelBorder.RAISED));

  }

  public static void main(String s[]) {
    CheckBoxMenuItemExample example = new CheckBoxMenuItemExample();
    example.pane = new JTextPane();
    example.pane.setPreferredSize(new Dimension(250250));
    example.pane.setBorder(new BevelBorder(BevelBorder.LOWERED));

    JFrame frame = new JFrame("Menu Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setJMenuBar(example.menuBar);
    frame.getContentPane().add(example.pane, BorderLayout.CENTER);
    frame.pack();
    frame.setVisible(true);
  }
}

           
         
    
    
  
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