利用Java的对象，继承，重绘，多态来绘画Wallpaper

利用Java的对象，继承，重绘，多态来绘画Wallpaper.

package FirstJavachengxu;

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

@SuppressWarnings("serial")
public class FirstJavachengxu extends JFrame {
	private Graphics g;
	private double
	 //a = 0.4, b = 1, c = 0;
	 a = 1, b = 4, c = 60;
	//a = -1000, b = 0.1, c = -10;
	//a = -1,b = -2, c = -3;

	public static void main(String[] args) {
		FirstJavachengxu show = new FirstJavachengxu();
		show.Init();
	}

	public void Init() {
		// 设置标题
		this.setTitle("Wallpaper");
		// 设置窗体大小
		this.setSize(1200, 1000);
		// 给窗体设置背景
		this.getContentPane().setBackground(Color.black);
		// 窗体显示
		this.setVisible(true);
		g = this.getGraphics();

	}

	public void paint(Graphics g) {
		// 调用父类的paint方法，用来绘制窗体
		super.paint(g);
		System.out.println("my name is luozhong");
		// xn+1 = yn - sign(xn) | b xn - c |1/2
		// yn+1 = a - xn
		double x = 0f, y = 0f;

		// g.setColor(Color.CYAN);
		g.setColor(Color.pink);
		int tiems = 0;
		while (tiems < 600000000) {
			tiems++;
			// xn+1 = yn - sign(xn) | b xn - c |1/2
			// yn+1 = a - xn
			double temx = y - Math.signum(x) * Math.sqrt(Math.abs(b * x - c));
			double temy = a - x;
			// double temx=y-Math.signum(x)*Math.sqrt(Math.abs(b*x-c));
			// double temy=a-x;
			System.out.println("x1=" + x);
			System.out.println("y1=" + y);
			System.out.println("temx=" + temx);
			System.out.println("temy=" + temy);
			double x1 = temx * 未知数 + 600;
			double y1 = temy * 未知数 + 300;
			g.drawLine((int) x1, (int) y1, (int) x1, (int) y1);
			x = temx;
			y = temy;

		}

	}
}
注意：未知数关系到图像的清晰，不会挤在一起。未知数为图像像素的松弛度。
 The   URL  of  Wallpaper   is  http://paulbourke.net/fractals/wallpaper/.

运行结果：