import?java.awt.*;
import?java.awt.event.ActionEvent;
import?java.awt.event.ActionListener;
import?java.awt.event.MouseEvent;
import?java.awt.event.MouseListener;
import?java.awt.geom.Ellipse2D;
import?java.awt.geom.Line2D;
import?java.awt.image.BufferedImage;
import?javax.swing.*;

import?java.util.*;

public?class?drawing?extends?Jframe{
	MyPanel?Panel;
????JButton?jb1?jb2;
	public?drawing（）{
		JOptionPane.showMessageDialog（null?“1.在畫板上畫N個點?\n2.點擊“畫多邊形“按鈕\n3.點擊”填充多邊形“按鈕\n“）;
		setDefaultCloseOperation（Jframe.EXIT_ON_CLOSE）;
		Panel?=?new?MyPanel（）;
		Container?contentPane=getContentPane（）;
		contentPane.add（Panel?“Center“）;
????	jb1?=?new?JButton（“畫多邊形“）;
????	jb2?=?new?JButton（“填充多邊形“）;
????	jb1.addActionListener（Panel）;
????	jb2.addActionListener（Panel）;
???