java画满天星_java实现的满天星效果实例

import java.awt.*;

public class main {

public static void main(string[] args) {

frame frame = new frame("满天星");

mypanel panel = new mypanel();

frame.add(panel);

frame.setbackground(color.black);

frame.setsize(1024, 768);

frame.setvisible(true);

}

}

class mypanel extends panel {

private static final long serialversionuid = 1l;

public void paint(graphics g) {

g.setcolor(color.white);

for (int i = 0; i < 300; i++) {

g.drawstring("*", (int) (math.random() * 1024),

(int) (math.random() * 768));

}

g.filloval(800, 100, 100, 100);

g.setcolor(color.black);

g.filloval(780, 80, 100, 100);

}

}