Code sharing for Ava swing heart-shaped dynamic patterns

Today the Java Mall Product development staff shares the code of a Java swing heart-shaped dynamic pattern

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

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 = Toolkit.getDefaultToolkit()              .getScreenSize().width;      private static int WINDOW_HEIGHT = Toolkit.getDefaultToolkit()              .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 = this.createImage(WIDTH, HEIGHT);          Graphics pic = image.getGraphics();            // 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 * Math.cos(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.fillOval((int) x, (int) y, 2, 2);              }              // 生成图片              g.drawImage(image, 0, 0, this);            }        }        public static void main(String[] args) {            new Cardioid();