한빛출판네트워크

// IntroExample.java
//

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class IntroExample extends JMenuBar {

   String[ ] fileItems = new String[ ] { "New", "Open", "Save", "Exit" };
   String[ ] editItems = new String[ ] { "Undo", "Cut", "Copy", "Paste" };
   char[ ] fileShortcuts = { "N","O","S","X" };
   char[ ] editShortcuts = { "Z","X","C","V" };

   public IntroExample(  ) {

      JMenu fileMenu = new JMenu("File");
      JMenu editMenu = new JMenu("Edit");
      JMenu otherMenu = new JMenu("Other");
      JMenu subMenu = new JMenu("SubMenu");
      JMenu subMenu2 = new JMenu("SubMenu2");

      // 밑줄 단축키가 있는 파일 메뉴 생성
	
      ActionListener printListener = new ActionListener(  ) {
         public void actionPerformed(ActionEvent event) {
            System.out.println("Menu item [" + event.getActionCommand(  ) +
                               "] was pressed.");
         }
      };
      for (int i=0; i < fileItems.length; i++) {
         JMenuItem item = new JMenuItem(fileItems[i], fileShortcuts[i]);
         item.addActionListener(printListener);
         fileMenu.add(item);
      }

      // 일반 단축키가 있는 파일 메뉴 생성
      for (int i=0; i < editItems.length; i++) {
         JMenuItem item = new JMenuItem(editItems[i]);
         item.setAccelerator(KeyStroke.getKeyStroke(editShortcuts[i],
              Toolkit.getDefaultToolkit(  ).getMenuShortcutKeyMask(  ), false));
         item.addActionListener(printListener);
         editMenu.add(item);
      }

      // Insert a separator in the Edit menu in Position 1 after "Undo".
      editMenu.insertSeparator(1);

      // 다른 메뉴의 서브 클래스 생성
      JMenuItem item;
      subMenu2.add(item = new JMenuItem("Extra 2"));
      item.addActionListener(printListener);
      subMenu.add(item = new JMenuItem("Extra 1"));
      item.addActionListener(printListener);
      subMenu.add(subMenu2);

      // 메뉴 자신을 생성
      otherMenu.add(subMenu);
      otherMenu.add(item = new JCheckBoxMenuItem("Check Me"));
      item.addActionListener(printListener);
      otherMenu.addSeparator(  );
      ButtonGroup buttonGroup = new ButtonGroup(  );
      otherMenu.add(item = new JRadioButtonMenuItem("Radio 1"));
      item.addActionListener(printListener);
      buttonGroup.add(item);
      otherMenu.add(item = new JRadioButtonMenuItem("Radio 2"));
      item.addActionListener(printListener);
      buttonGroup.add(item);
      otherMenu.addSeparator(  );
      otherMenu.add(item = new JMenuItem("Potted Plant", 
                           new ImageIcon("image.gif")));
      item.addActionListener(printListener);

      // 마지막으로 메뉴바에 모든 메뉴 삽입
      add(fileMenu);
      add(editMenu);
      add(otherMenu);
   }

   public static void main(String s[ ]) {
      JFrame frame = new JFrame("Simple Menu Example");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setJMenuBar(new IntroExample(  ));
      frame.pack(  );
      frame.setVisible(true);
   }
}

Menu item [New] was pressed.
Menu item [Radio 1] was pressed.