round.java

是一个用于显示球的哦,呵呵,代码简短,功能均已实现,不可多得啊,

import java.awt.*;
import java.sql.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import java.lang.*;
public class round extends Applet implements Runnable

{int i,x,y,j=0;

round r=new round();

		Thread t=new Thread(r);

	void s()

	{

		t.start();

	}	

	public void paint(Graphics g)

	{

		

		for(i=0;i<100;i++)

				{

					x=60+(int)(j*Math.cos(i*2*Math.PI/100));

					y=70+(int)(j*Math.sin(i*2*Math.PI/100));

					g.drawString("*",x,y);

				}

				

	}

	public void run()

	{

		while(true)

		{

			j=j+1;

				if(j==50)

				{j=0;}

			repaint();

		}

	}

}