popupmenutest.java

来自「这是清华大学编写的JAVA教材中所有题目的源代码！」· Java 代码 · 共 35 行

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

class PopupMenuTest extends MouseAdapter
{
	Frame f=new Frame("正在测试弹出式菜单!");

	//创建弹出式菜单Edit
	PopupMenu mnuEdit=new PopupMenu("编辑");
	
	public PopupMenuTest()
	{
		//将相关菜单项加入到Edit菜单中
		mnuEdit.add(new MenuItem("剪切"));
		mnuEdit.add(new MenuItem("复制"));
		mnuEdit.add(new MenuItem("粘贴"));
		
		f.add(mnuEdit);
		f.addMouseListener(this);
		
		f.setSize(300,200);
		f.setVisible(true);
	}
	
	public void mousePressed(MouseEvent e)
	{
		if(e.getModifiers()==InputEvent.BUTTON3_MASK)
			mnuEdit.show(f,e.getX(),e.getY());
	}    
	
   	public static void main(String args[])
	{
		new PopupMenuTest();
	}
}