j_picture0.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 42 行

//J_Picture0.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_Picture0 extends JApplet
{
	Container m_container=null;
	
	public void init()
	{
		System.out.println("init");
		if(m_container==null)
			m_container=getContentPane();
		m_container.setLayout(new BorderLayout());
		repaint();
	}
	
	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_Picture0 jp=new J_Picture0();
		
		
		jp.m_container=jf.getContentPane();
		jp.init();
						
		jf.setSize(500,300);
		jf.setVisible(true);
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}//End of method main
}//End of class J_Picture0