j_picture.java

来自「用UDP协议实现两台电脑间的相互对话通信」· Java 代码 · 共 35 行

//J_Picture.java
//Created by Zhou Chuanle
//
//Readme
//use java to draw a picture

import java.awt.*;
import javax.swing.*;
import java.awt.geom.*;

public class J_Picture extends JApplet
{
	Container m_container=null;
	
	public void paint(Graphics g)
	{
		g.drawLine(20,30,60,90);	
	}//End of method paint
	
	public static void main(String args[])
	{
		JFrame jf=new JFrame("Draw a picture");
		J_Picture jp=new J_Picture();
		
		jp.m_container=jf.getContentPane();
				
		jf.setSize(500,300);
		jf.setVisible(true);
		
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		while(true)
			jp.paint(jf.getGraphics());				
	}//End of method main
}//End of class J_Picture