小程序---挺好看的

import java.awt.*;

import java.awt.geom.*;

import javax.swing.*;

public class Circle extends JFrame{

private int cx;

private int cy;

private int cr;

public Circle(int incx,int incy,int incr){

super("Circle");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setSize(300,300);

cx=incx;

cy=incy;

cr=incr;

CirclePane ccp=new CirclePane(cx,cy,cr);

Container pane=getContentPane();

pane.add(ccp);

setVisible(true);

}

public static void main(String[] args) {

new Circle(10,10,10);

}

}

class CirclePane extends JPanel{

private  int cx;

private int cy;

private  int cr;

CirclePane(int incx,int incy,int incr){

cx=incx;

cy=incy;

    cr=incr;

}

public void paintComponent(Graphics comp){

Graphics2D comp2D=(Graphics2D)comp;

for(int i=0;i<8;i++){

    Ellipse2D.Float ee=new Ellipse2D.Float(cx+i*30,cy+i*30,cr+i*6,cr+i*6);

comp2D.setColor(Color.red);

comp2D.fill(ee);

}

}

}