lotsofcircles.java

来自「java编程开发技巧与实例的编译测试通过的所有例程」· Java 代码 · 共 21 行

import java.awt.Graphics;
import java.awt.Color;
import javax.swing.*;

public class LotsOfCircles extends JPanel
{
	public void paintComponent(Graphics g)
	{
		super.paintComponent(g);
		for (int i = 0; i < 10000; i ++)
		{
			Color color	=	new Color((int)(255*Math.random()), (int)(255*Math.random()), (int)(255*Math.random()));
			//Color color	=	new Color(22, 22, 55);
			int x = (int)(getSize().width * Math.random());
			int y = (int)(getSize().height * Math.random());
			g.setColor(color);
			g.fillOval(x-10, y-10, 20, 20);
		}
	}
}