AWT>Menu Components>MenuItem

Menu에서 항목을 표현한다.
선택되면 이벤트를 발생시킨다.
enable()/disable() 메소드로 사용가능/불가능으로 지정가능하다.



import java.awt.*;
import java.awt.event.*;

public class TestMenuItems extends Frame implements ActionListener {
 MenuBar mBar;
 Menu breadMenu, toastMenu;
 Menu helpMenu;
 
 TextField tField;
 
 public TestMenuItems() {
  breadMenu = new Menu("Bread");
 
  MenuItem tempMenuItem;
 
  tempMenuItem = new MenuItem("White");
  tempMenuItem.addActionListener(this);
  breadMenu.add(tempMenuItem);
 
  tempMenuItem = new MenuItem("Wheat");
  tempMenuItem.addActionListener(this);
  breadMenu.add(tempMenuItem);
 
  tempMenuItem = new MenuItem("Rye");
  tempMenuItem.addActionListener(this);
  breadMenu.add(tempMenuItem);
 
  toastMenu = new Menu("Toast");
 
  tempMenuItem = new MenuItem("Light");
  tempMenuItem.addActionListener(this);
  toastMenu.add(tempMenuItem);
 
  tempMenuItem = new MenuItem("Medium");
  tempMenuItem.addActionListener(this);
  toastMenu.add(tempMenuItem);
 
  tempMenuItem = new MenuItem("Dark");
  tempMenuItem.addActionListener(this);
  toastMenu.add(tempMenuItem);
 
  mBar = new MenuBar();
  mBar.add(breadMenu);
  mBar.add(toastMenu);
 
  helpMenu = new Menu("Help");
  helpMenu.add(new MenuItem("help"));
 
  mBar.setHelpMenu(helpMenu);
  tField = new TextField(" ", 30);
 
  setLayout(new FlowLayout());
  add(tField);
  setMenuBar(mBar);
 
  addWindowListener(new WinCloser());
  setTitle("Using Menu Bars");
  setBounds(100,100,300,300);
  setVisible(true);
 }
 
 public void actionPerformed(ActionEvent ae) {
  String cmd = ae.getActionCommand();    //어떤항목이 사용자에게 선택되었는지 알수있다
  tField.setText("You selected : " + cmd);
 }
 
 public static void main(String[] args) {
  TestMenuItems tmi = new TestMenuItems();
 }
}

class WinCloser extends WindowAdapter {
 public void windowClosing(WindowEvent e) {
  System.exit(0);
 }
}