popupmenutest.java

来自「弹出窗口的小测试程序」· Java 代码 · 共 38 行

import java.awt.*;
import java.awt.event.*;
public class PopupMenuTest extends Frame implements ActionListener
{
	Button b = null;
	PopupMenu menu;
	PopupMenuTest()
	{
		super("带弹出菜单的窗口");
		menu = new PopupMenu("我是弹出式菜单,是Menu的子类");
		menu.add(new MenuItem("copy"));
		menu.add(new MenuItem("paste"));
		menu.add(new MenuItem("save"));
		add(menu);
		b = new Button("ok");
		add(b,"North");
		b.addActionListener(this);
		setSize(200,200);
		setVisible(true);
		addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
			{
				System.exit(0);
			}
		});

	}
	public void actionPerformed(ActionEvent e)
	{
		menu.show(b,20,5);
	}
	public static void main(String args[])
	{
		new PopupMenuTest();
	}
}