package?jsjtxx2;

import?java.awt.Color;
import?java.awt.Dimension;
import?java.awt.EventQueue;
import?java.awt.Graphics;
import?java.awt.Graphics2D;
import?java.awt.event.ActionEvent;
import?java.awt.event.ActionListener;
import?java.awt.event.MouseAdapter;
import?java.awt.event.MouseEvent;
import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.HashMap;
import?java.util.Iterator;
import?java.util.List;
import?java.util.Map;

import?javax.swing.JButton;
import?javax.swing.Jframe;
import?javax.swing.JPanel;
import?javax.swing.JTextArea;

public?class?MySaom?{
	private?List?points?=?new?ArrayList（）;
	private?Jframe?frame;

	public?static?void?main（String[]?args）?
	{
		MySaom?ms?=?new?MySaom（）;
	????ms.frame.setVisible（true）;				
	}	
	public?MySaom（）?{
		initialize（）;
	}
	private?void?initialize（）?{
		frame?=?new?Jframe（）;
		frame.setBounds（100?100?800?600）;
		frame.setDefaultCloseOperation（Jframe.EXIT_ON_CLOSE）;
		frame.getContentPane（）.setLayout（null）;
		
		JButton?jbtn?=?new?JButton（“掃描“）;
		jbtn.addActionListener（new?ActionListener（）?{
			public?void?actionPerformed（ActionEvent?e）?{
				if（points.size（）?!=?0）?
				new?newframe（points）;
			}
		}）;
		
		jbtn.setBounds（600?400?100?50）;
		frame.getContentPane（）.add（jbtn）;
		
		final?JTextArea?jtright?=?new?JTextArea（）;
		
		jtright.setBounds（580?30?150?300）;
		frame.getContentPane（）.add（jtright）;
		
		final?JPanel?jpleft?=?new?JPanel（）;
		jpleft.addMouseListener（new?MouseAdapter（）?
		{
			@Override
			public?void?mouseClicked（MouseEvent?e）?
			{
				points.add（new?Point（e.getX（）?e.getY（）））;
				jpleft.addMouseListener（new?MouseAdapter（）
				{
					@Override
					public?void?mousePressed（MouseEvent?e）
					{
						String?s?=?““;
						for（int?i?=?0?;i						{
							Point?point?=?（Point）points.get（i）;
							s?+=?“x:“+point.getX（）?+?“????????“?+“y:“+?point.getY（）?+?“\n“;
						}
						
						jtright.setText（s）;
					}
				}）;
				draw（jpleft.getGraphics（））;
				
			}

			private?void?draw（Graphics?g）?{
				Color?c?=?g.getColor（）;
				g.setColor（Color.red）;
				if（points.size（）?>?0）?{
					for（int?i?=?1?;i						Point?point?=?（Point）points.get（i）;
						Point?point1?=?（Point）points.get（i-1）;
						g.fillOval（point1.getX（）point1.getY（）1010）;
						g.drawLine（point.getX（）point.getY（）point1.getX（）point1.getY（））;
					}
				}	
				
			}
		}）;
		jpleft.setBackground（Color.WHITE）;
		jpleft.setBounds（10?10?553?471）;
		frame.getContentPane（）.add（jpleft）;
		
		
	}
}
class?Point//
{
	private?int?x;
	private?int?y;
	
	public?Point（int?x?int?y）?{
		super（）;
		this.x?=?x;
		this.y?=?y;
	}
	
	public?int?getX（）?{
		return?x;
	}
	public?void?setX（int?x）?{
		this.x?=?x;
	}
	public?int?getY（）?{
		return?y;
	}
	public?void?setY（int?y）?{
		this.y?=?y;
	}
}
class?newframe?extends?Jframe{//行的Jframe界面，里面有