ch7_e7_4.java

各种关于JAVA的初级编程

import java.awt.*; 
import java.applet.Applet;

public class ch7_e7_4 extends Applet
{
    int width=50,height=50;
    int x=100,y=70;
    int startA =0;
    public void paint(Graphics g)
    {
        for(int i=0;i<10;i++)
        {
            g.drawArc(x,y,width,height,startA,90);
            if(i%2 ==0)
            {
                width += 20;
                x -= 10;
            }
            else
            {
                height += 20;
                y -= 10;
            }
            startA = (startA + 90)%360;
        }
    }
}