import javax.swing.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.*;

public class UseRightButton extends JFrame implements MouseListener {
    JPanel panel;
    public UseRightButton() {
        setTitle("右鍵彈出菜單");
        setSize(400, 300);
        panel = new JPanel();
        panel.addMouseListener(this);
        getContentPane().setLayout(new BorderLayout());
        getContentPane().add(panel, BorderLayout.CENTER);
    }

    public static void main(String[] args) {
        UseRightButton rb = new UseRightButton();
        rb.setVisible(true);
    }

    public void mousePressed(MouseEvent e) {
        if (e.getSource() == panel && e.getButton() == MouseEvent.BUTTON3) {
            menu1 popup = new menu1(this);
            popup.show((Component) panel, e.getX(), e.getY());
        } 
    }

    public void mouseEntered(MouseEvent e) {
    }

    public void mouseExited(MouseEvent e) {
    }

    public void mouseClicked(MouseEvent e) {
    }

    public void mouseReleased(MouseEvent e) {
    }
}