Java by API/javax.swing/JCheckBoxMenuItem

JCheckBoxMenuItem: setMnemonic(int mnemonic)

   <source lang="java">

import java.awt.event.KeyEvent; import javax.swing.JCheckBoxMenuItem; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; public class Main {

 public static void main(final String args[]) {
   JFrame frame = new JFrame("MenuSample Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JMenuBar menuBar = new JMenuBar();
   // File Menu, F - Mnemonic
   JMenu fileMenu = new JMenu("File");
   fileMenu.setMnemonic(KeyEvent.VK_F);
   menuBar.add(fileMenu);
   // File->New, N - Mnemonic
   JMenuItem newMenuItem = new JMenuItem("New", KeyEvent.VK_N);
   fileMenu.add(newMenuItem);
   JCheckBoxMenuItem caseMenuItem = new JCheckBoxMenuItem("Case Sensitive");
   caseMenuItem.setMnemonic(KeyEvent.VK_C);
   fileMenu.add(caseMenuItem);
   
   frame.setJMenuBar(menuBar);
   frame.setSize(350, 250);
   frame.setVisible(true);
 }

}

 </source>
   
  
 
  

new JCheckBoxMenuItem(String text)

   <source lang="java">

import java.awt.event.KeyEvent; import javax.swing.JCheckBoxMenuItem; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; public class Main {

 public static void main(final String args[]) {
   JFrame frame = new JFrame("MenuSample Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JMenuBar menuBar = new JMenuBar();
   // File Menu, F - Mnemonic
   JMenu fileMenu = new JMenu("File");
   fileMenu.setMnemonic(KeyEvent.VK_F);
   menuBar.add(fileMenu);
   // File->New, N - Mnemonic
   JMenuItem newMenuItem = new JMenuItem("New", KeyEvent.VK_N);
   fileMenu.add(newMenuItem);
   JCheckBoxMenuItem caseMenuItem = new JCheckBoxMenuItem("Case Sensitive");
   caseMenuItem.setMnemonic(KeyEvent.VK_C);
   fileMenu.add(caseMenuItem);
   
   frame.setJMenuBar(menuBar);
   frame.setSize(350, 250);
   frame.setVisible(true);
 }

}

 </source>
   
  
 
  

new JCheckBoxMenuItem(String text, boolean selected)

   <source lang="java">

import java.awt.Event; import javax.swing.ButtonGroup; import javax.swing.JCheckBoxMenuItem; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JRadioButtonMenuItem; import javax.swing.KeyStroke; public class MainClass extends JFrame {

 public MainClass() {
   setDefaultCloseOperation(EXIT_ON_CLOSE);
   setJMenuBar(menuBar);
   JMenu fileMenu = new JMenu("File");
   JMenu elementMenu = new JMenu("Elements");
   fileMenu.setMnemonic("F");
   elementMenu.setMnemonic("E");
   // Construct the file pull down menu
   newItem = fileMenu.add("New");
   openItem = fileMenu.add("Open");
   closeItem = fileMenu.add("Close");
   fileMenu.addSeparator();
   saveItem = fileMenu.add("Save");
   saveAsItem = fileMenu.add("Save As...");
   JMenu colorMenu = new JMenu("Color");
   fileMenu.addSeparator();
   printItem = fileMenu.add("Print");
   newItem.setAccelerator(KeyStroke.getKeyStroke("N", Event.CTRL_MASK));
   openItem.setAccelerator(KeyStroke.getKeyStroke("O", Event.CTRL_MASK));
   saveItem.setAccelerator(KeyStroke.getKeyStroke("S", Event.CTRL_MASK));
   printItem.setAccelerator(KeyStroke.getKeyStroke("P", Event.CTRL_MASK));
   elementMenu.add(lineItem = new JRadioButtonMenuItem("Line", true));
   elementMenu
       .add(rectangleItem = new JRadioButtonMenuItem("Rectangle", false));
   elementMenu.add(circleItem = new JRadioButtonMenuItem("Circle", false));
   elementMenu.add(curveItem = new JRadioButtonMenuItem("Curve", false));
   ButtonGroup types = new ButtonGroup();
   types.add(lineItem);
   types.add(rectangleItem);
   types.add(circleItem);
   types.add(curveItem);
   lineItem.setAccelerator(KeyStroke.getKeyStroke("L", Event.CTRL_MASK));
   rectangleItem.setAccelerator(KeyStroke.getKeyStroke("E", Event.CTRL_MASK));
   circleItem.setAccelerator(KeyStroke.getKeyStroke("I", Event.CTRL_MASK));
   curveItem.setAccelerator(KeyStroke.getKeyStroke("V", Event.CTRL_MASK));
   elementMenu.addSeparator();
   elementMenu.add(colorMenu); // Add the sub-menu
   colorMenu.add(redItem = new JCheckBoxMenuItem("Red", false));
   colorMenu.add(yellowItem = new JCheckBoxMenuItem("Yellow", false));
   colorMenu.add(greenItem = new JCheckBoxMenuItem("Green", false));
   colorMenu.add(blueItem = new JCheckBoxMenuItem("Blue", true));
   // Add element color accelerators
   redItem.setAccelerator(KeyStroke.getKeyStroke("R", Event.CTRL_MASK));
   yellowItem.setAccelerator(KeyStroke.getKeyStroke("Y", Event.CTRL_MASK));
   greenItem.setAccelerator(KeyStroke.getKeyStroke("G", Event.CTRL_MASK));
   blueItem.setAccelerator(KeyStroke.getKeyStroke("B", Event.CTRL_MASK));
   menuBar.add(fileMenu);
   menuBar.add(elementMenu);
 }
 private JMenuBar menuBar = new JMenuBar();
 // File menu items
 private JMenuItem newItem, openItem, closeItem, saveItem, saveAsItem,
     printItem;
 // Element menu items
 private JRadioButtonMenuItem lineItem, rectangleItem, circleItem, curveItem,
     textItem;
 private JCheckBoxMenuItem redItem, yellowItem, greenItem, blueItem;
 public static void main(String[] args) {
   JFrame aWindow = new MainClass();
   aWindow.setSize(200,200);
   aWindow.setVisible(true);
 }

}

 </source>