java 右鍵菜單_界面操作--添加右鍵菜單

[java]代碼庫package 添加右鍵菜單;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import javax.swing.JFrame;

import javax.swing.JMenuItem;

import javax.swing.JPopupMenu;

public class main

{

public static void main(String[] args)

{

final JFrame jf = new JFrame("窗體");

jf.setSize(300, 300);

jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jf.setLocationRelativeTo(null);

// 建立彈出菜單

final JPopupMenu jp = new JPopupMenu();

JMenuItem item1 = new JMenuItem("功能1");

item1.addMouseListener(new MouseAdapter()

{

@Override

public void mouseReleased(MouseEvent e)

{

if (e.getButton() == MouseEvent.BUTTON1)

{

System.out.println("左鍵單擊");

}

}

});

jp.add(item1);

jf.addMouseListener(new MouseAdapter()

{

@Override

public void mouseClicked(MouseEvent e)

{

if (e.getButton() == MouseEvent.BUTTON3)

{

// 彈出菜單

jp.show(jf, e.getX(), e.getY());

}

}

});

jf.setVisible(true);

}

}