javaswing实现动态⼼形图案的代码下载原⽂：
源代码下载地址：
package com.zuidaima.swing;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.JFrame;
@SuppressWarnings("serial")
class Cardioid extends JFrame {
// 定义窗⼝⼤⼩
private static final int WIDTH = 480;
private static final int HEIGHT = 600;
// 获取屏幕⼤⼩
private static int WINDOW_WIDTH = DefaultToolkit()
.getScreenSize().width;
private static int WINDOW_HEIGHT = DefaultToolkit()
.getScreenSize().height;
// 构造函数
public Cardioid() {
// 设置窗⼝标题
super("❤形线");
/
/ 设置背景⾊
this.setBackground(Color.BLACK);
// 设置窗⼝位置
this.setLocation((WINDOW_WIDTH - WIDTH) / 2,
(WINDOW_HEIGHT - HEIGHT) / 2);
// 设置窗⼝⼤⼩
this.setSize(WIDTH, HEIGHT);
// 设置窗⼝布局
this.setLayout(getLayout());
// 设置窗⼝可见
this.setVisible(true);
/
/ 设置窗⼝默认关闭⽅式
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}
public void paint(Graphics g) {
double x, y, r; // 横纵坐标及半径
Image image = ateImage(WIDTH, HEIGHT);
Graphics pic = Graphics();
// 绘制图形
for (int i = 0; i < 100; i++) {
for (int j = 0; j < 100; j++) {
r = Math.PI / 45 + Math.PI / 45 * i
* (1 - Math.sin(Math.PI / 45 * j)) * 18;
x = r * s(Math.PI / 45 * j) * Math.sin(Math.PI / 45 * i)
+ WIDTH / 2;
y = -r * Math.sin(Math.PI / 45 * j) + HEIGHT / 2;
pic.setColor(Color.MAGENTA);
pic.setColor(Color.MAGENTA);
pic.fillOval((int) x, (int) y, 2, 2);
}
// ⽣成图⽚
g.drawImage(image, 0, 0, this);
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}
}
public static void main(String[] args) {
new Cardioid();
}
}