menu1.java

Java课程中所有的可运行程序 全部都是java课程中所涉及到的源码

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

public class Menu1 extends Frame  implements ActionListener {
 Menu menu1;
    Menu menu2;
    Menu menu3,menu4;
    MenuItem MenuItem1 , MenuItem2 ;
    MenuItem MenuItem3 , MenuItem4 ;
    MenuItem MenuItem5 , MenuItem6 ;
    MenuItem MenuItem7,  MenuItem8 ,MenuItem9, MenuItem10 ;
    CheckboxMenuItem  MenuItem11 ,MenuItem12  ;

    Label label1;

    public Menu1(String ss) {

        super(ss);
        label1=new Label("init");
        add(label1);

              MenuBar mb = new MenuBar();

    menu1 = new Menu("文件");

    MenuItem1=new MenuItem("新建(N)");
    MenuItem1.addActionListener(this);
        menu1.add(MenuItem1);

    MenuItem2=new MenuItem("打开(哦)(O)");
    MenuItem2.addActionListener(this);
    menu1.add(MenuItem2);

    menu1.addSeparator();

     MenuItem3=new MenuItem("保存(S)");
     MenuItem3.addActionListener(this);
     menu1.add(MenuItem3);

      MenuItem4=new MenuItem("另存为");
      MenuItem4.addActionListener(this);
     menu1.add(MenuItem4);
      menu1.addSeparator();

MenuItem5=new MenuItem("打印");
MenuItem5.setEnabled(false);
MenuItem5.addActionListener(this);
     menu1.add(MenuItem5);


     MenuItem6=new MenuItem("退出(Q)");
     MenuItem6.addActionListener(this);
     menu1.add(MenuItem6);

    mb.add(menu1);

    menu2 = new Menu("编辑");
MenuItem7=new MenuItem("剪切(X)");
MenuItem7.addActionListener(this);
    menu2.add(MenuItem7);

    MenuItem8=new MenuItem("复制(C)");
    MenuItem8.addActionListener(this);
    menu2.add(MenuItem8);

    MenuItem9=new MenuItem("粘贴(V)");
    MenuItem9.addActionListener(this);
    menu2.add(MenuItem9);

mb.add(menu2);

    menu3 = new Menu("查看");
    MenuItem10 = new MenuItem("选项");
    MenuItem10.addActionListener(this);
     menu3.add(MenuItem10);

     menu4 = new Menu("工具栏");

    MenuItem11=new CheckboxMenuItem("常用",true);
    MenuItem11.addItemListener(new ItemListener(){
  public void itemStateChanged(ItemEvent e){
  processAction(e);}
});
    menu4.add(MenuItem11);

    MenuItem12=new CheckboxMenuItem("格式",false);
    MenuItem12.addItemListener(new ItemListener(){
  public void itemStateChanged(ItemEvent e){
  processAction(e);}
});
    menu4.add(MenuItem12);

    menu3.add(menu4);
    mb.add(menu3);

    setMenuBar(mb);

   addKeyListener( new KeyListener(){
        public void  keyPressed(KeyEvent e){
		int nKeycode=e.getKeyCode();
		String keyText=e.getKeyText(nKeycode);
		if(keyText.equals("N")){
             label1.setText("新建");        }
             if(keyText.equals("O")){
             label1.setText("打开");        }
             if(keyText.equals("S")){
             label1.setText("保存");        }
             if(keyText.equals("X")){
             label1.setText("剪切");        }
             if(keyText.equals("C")){
             label1.setText("复制");        }
             if(keyText.equals("V")){
             label1.setText("粘贴");        }
              if(keyText.equals("Q")){
             System.exit(0);        }
        }
        public void  keyReleased(KeyEvent e){}

 public void  keyTyped(KeyEvent e){}

        });

        show();
    }


public void actionPerformed(ActionEvent e){
        if(e.getSource()== MenuItem1)
               { label1.setText("新建");}
if(e.getSource()== MenuItem2)
               { label1.setText("打开");}
if(e.getSource()== MenuItem3)
               { label1.setText("保存");}
if(e.getSource()== MenuItem4)
               { label1.setText("另存为");}
if(e.getSource()== MenuItem5)
               { label1.setText("打印");}
if(e.getSource()== MenuItem6)
               { System.exit(0);}
if(e.getSource()== MenuItem7)
           { label1.setText("剪切");}
if(e.getSource()== MenuItem8)
 { label1.setText("复制");}
if(e.getSource()== MenuItem9)
{ label1.setText("粘贴");}
 if(e.getSource()== MenuItem10)
 { label1.setText("选项");}

}

public void  processAction(ItemEvent e){
 String name=(String)e.getItem();
 if (name=="常用"){
	{if (e.getStateChange()==e.SELECTED)
		{label1.setText("常用 selected!");}
	if (e.getStateChange()==e.DESELECTED)
		{label1.setText("常用 deselected!");}
	}
 }
 if (name=="格式"){
	{if (e.getStateChange()==e.SELECTED)
		{label1.setText("格式 selected!");}
	if (e.getStateChange()==e.DESELECTED)
		{label1.setText("格式 deselected!");}
	}
 }
}

public Dimension getPreferredSize()
{
  return new Dimension(300,300);
}

    public static void main(String args[]) {
        Menu1 nowFrame=new Menu1("example menu");
         nowFrame.addWindowListener(new WindowAdapter(){
   public void windowClosing(WindowEvent e){
    System.exit(0);
         }
  });
nowFrame.pack();
  nowFrame.show();
    }

    }