shiyan23.java

来自「本人在JAVA学习中的一点小实验」· Java 代码 · 共 29 行

//<applet code="shiyan23.class" height="400" width="300">
//</applet> 
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.io.*;
class MyPanel extends JPanel{
	 public void paintComponent(Graphics g){
	 	super.paintComponent(g);
	 	int i=(int)(Math.random()*255)+1;
	 	int j=(int)(Math.random()*255)+1;
	 	int k=(int)(Math.random()*255)+1;
	 	Color c1=new Color(i,j,k);
	 	
	 	g.setColor(Color.RED);
	 	g.fillRect(40,40,200,200);
	 	
	 	g.setColor(c1);
	 	g.fillOval(40,40,200,200);
	 	
	 }
}
public class shiyan23 extends JApplet{
	public void init(){
		MyPanel mp=new MyPanel();
		setContentPane(mp);
	}
}