使用JAVA代码实现跳动爱心（脱单节程序员必备哦）

520！！！表白日，你脱单了吗？你跟对象彻夜不归了吗？

如果没有说明，你的诚心不够，来给对象一个代码表白吧！

话不多说，先上效果图：

实现代码如下：

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.JFrame;

class Cardioid extends JFrame {

    //定义窗口大小
    private static final int WIDTH = 900;
    private static final int HEIGHT = 800;

    //获取屏幕大小
    private static final int WINDOW_WIDTH = Toolkit.getDefaultToolkit().getScreenSize().width;
    private static final int WINDOW_HEIGHT = Toolkit.getDefaultToolkit().getScreenSize().height;
    //构造函数
    public Cardioid() {
        //设置窗口标题
        super("♥爱心");
        //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);
        //设置窗口的默认关闭方式
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    //图形函数
    public void paint(Graphics g) {
        //横纵坐标及半径
        double x, y, r;
        //绘制图形
        double z = 0.0;
        double size=10;
        int jj=0;
        while (true) {
            Image image = this.createImage(WIDTH, HEIGHT);
            Graphics pic = image.getGraphics();
            if (jj%2==0){
                size=14.5;
            }else {
                size=15;
            }
            for (int ii = 30; ii > 0; ii--) {
                Color color = new Color(255, 175, (int) (20 * Math.random()) + 220);
                for (int i = 1; i < 400; i++) {
                    int px = (int) (Math.random() * 10);
                    int py = (int) (Math.random() * 10);
                    x = 16 * (Math.sin(z) * Math.sin(z) * Math.sin(z)) * (size) + Math.pow((-1), px) * Math.random() * ii * Math.sqrt(ii) + WIDTH / 2;
                    y = -(13 * Math.cos(z) - 5 * Math.cos(2 * z) - 2 * Math.cos(3 * z) - Math.cos(4 * z)) * (size) + Math.pow((-1), py) * Math.random() * ii * Math.sqrt(ii) + HEIGHT * 1 / 3;
                    z += (Math.PI / 2.0) / 80;
                    pic.setColor(color);
                    pic.fillOval((int) x, (int) y, 2, 2);
                }
                if (ii < 3) {
                    pic.setFont(new Font("楷体", Font.BOLD, 40));//设置字体
                    pic.setColor(Color.pink);//字体颜色
                    //可自定义字体哦
                    pic.drawString("Love You", WIDTH / 2 - 100, 240);//绘制字符串
                    pic.drawString("爱你一万年!", WIDTH / 2, 280);//绘制字符串
                    g.drawImage(image, 0, 0, this);
                }
            }
            jj++;
            if (jj>100){
                break;
            }
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new Cardioid();
    }

}

html使用红心

<!DOCTYPE html>
<html>
  <head>
    <title></title>
  </head>
  <style>
    * {
      padding: 0;
      margin: 0;
    }
    html,
    body {
      height: 100%;
      padding: 0;
      margin: 0;
      background: #000;
    }
    canvas {
      position: absolute;
      width: 100%;
      height: 100%;
    }
	/* 字体的设置 */
	#name {
	        position: absolute;
	        top: 50%;
	        left: 50%;
	        transform: translate(-50%, -50%);
	        margin-top: -20px;
	        font-size: 46px;
	        color: #ea80b0;
	      }
    .aa {
      position: fixed;
      left: 50%;
      bottom: 10px;
      color: #ccc;
    }
  </style>
  <body>
    <canvas id="pinkboard"></canvas>
 <!-- 在下面加名字 -->
     <div id="name" style="color: pink;">爱你一万年</div> 
 
    <script>
      /*
       * Settings
       */
      var settings = {
        particles: {
          length: 500, // maximum amount of particles
          duration: 2, // particle duration in sec
          velocity: 100, // particle velocity in pixels/sec
          effect: -0.75, // play with this for a nice effect
          size: 30 // particle size in pixels
        }
      };
 
      /*
       * RequestAnimationFrame polyfill by Erik M?ller
       */
      (function () {
        var b = 0;
        var c = ["ms", "moz", "webkit", "o"];
        for (var a = 0; a < c.length && !window.requestAnimationFrame; ++a) {
          window.requestAnimationFrame = window[c[a] + "RequestAnimationFrame"];
          window.cancelAnimationFrame =
            window[c[a] + "CancelAnimationFrame"] ||
            window[c[a] + "CancelRequestAnimationFrame"];
        }
        if (!window.requestAnimationFrame) {
          window.requestAnimationFrame = function (h, e) {
            var d = new Date().getTime();
            var f = Math.max(0, 16 - (d - b));
            var g = window.setTimeout(function () {
              h(d + f);
            }, f);
            b = d + f;
            return g;
          };
        }
        if (!window.cancelAnimationFrame) {
          window.cancelAnimationFrame = function (d) {
            clearTimeout(d);
          };
        }
      })();
 
      /*
       * Point class
       */
      var Point = (function () {
        function Point(x, y) {
          this.x = typeof x !== "undefined" ? x : 0;
          this.y = typeof y !== "undefined" ? y : 0;
        }
        Point.prototype.clone = function () {
          return new Point(this.x, this.y);
        };
        Point.prototype.length = function (length) {
          if (typeof length == "undefined")
            return Math.sqrt(this.x * this.x + this.y * this.y);
          this.normalize();
          this.x *= length;
          this.y *= length;
          return this;
        };
        Point.prototype.normalize = function () {
          var length = this.length();
          this.x /= length;
          this.y /= length;
          return this;
        };
        return Point;
      })();
 
      /*
       * Particle class
       */
      var Particle = (function () {
        function Particle() {
          this.position = new Point();
          this.velocity = new Point();
          this.acceleration = new Point();
          this.age = 0;
        }
        Particle.prototype.initialize = function (x, y, dx, dy) {
          this.position.x = x;
          this.position.y = y;
          this.velocity.x = dx;
          this.velocity.y = dy;
          this.acceleration.x = dx * settings.particles.effect;
          this.acceleration.y = dy * settings.particles.effect;
          this.age = 0;
        };
        Particle.prototype.update = function (deltaTime) {
          this.position.x += this.velocity.x * deltaTime;
          this.position.y += this.velocity.y * deltaTime;
          this.velocity.x += this.acceleration.x * deltaTime;
          this.velocity.y += this.acceleration.y * deltaTime;
          this.age += deltaTime;
        };
        Particle.prototype.draw = function (context, image) {
          function ease(t) {
            return --t * t * t + 1;
          }
          var size = image.width * ease(this.age / settings.particles.duration);
          context.globalAlpha = 1 - this.age / settings.particles.duration;
          context.drawImage(
            image,
            this.position.x - size / 2,
            this.position.y - size / 2,
            size,
            size
          );
        };
        return Particle;
      })();
 
      /*
       * ParticlePool class
       */
      var ParticlePool = (function () {
        var particles,
          firstActive = 0,
          firstFree = 0,
          duration = settings.particles.duration;
 
        function ParticlePool(length) {
          // create and populate particle pool
          particles = new Array(length);
          for (var i = 0; i < particles.length; i++)
            particles[i] = new Particle();
        }
        ParticlePool.prototype.add = function (x, y, dx, dy) {
          particles[firstFree].initialize(x, y, dx, dy);
 
          // handle circular queue
          firstFree++;
          if (firstFree == particles.length) firstFree = 0;
          if (firstActive == firstFree) firstActive++;
          if (firstActive == particles.length) firstActive = 0;
        };
        ParticlePool.prototype.update = function (deltaTime) {
          var i;
 
          // update active particles
          if (firstActive < firstFree) {
            for (i = firstActive; i < firstFree; i++)
              particles[i].update(deltaTime);
          }
          if (firstFree < firstActive) {
            for (i = firstActive; i < particles.length; i++)
              particles[i].update(deltaTime);
            for (i = 0; i < firstFree; i++) particles[i].update(deltaTime);
          }
 
          // remove inactive particles
          while (
            particles[firstActive].age >= duration &&
            firstActive != firstFree
          ) {
            firstActive++;
            if (firstActive == particles.length) firstActive = 0;
          }
        };
        ParticlePool.prototype.draw = function (context, image) {
          // draw active particles
          if (firstActive < firstFree) {
            for (i = firstActive; i < firstFree; i++)
              particles[i].draw(context, image);
          }
          if (firstFree < firstActive) {
            for (i = firstActive; i < particles.length; i++)
              particles[i].draw(context, image);
            for (i = 0; i < firstFree; i++) particles[i].draw(context, image);
          }
        };
        return ParticlePool;
      })();
 
      /*
       * Putting it all together
       */
      (function (canvas) {
        var context = canvas.getContext("2d"),
          particles = new ParticlePool(settings.particles.length),
          particleRate =
            settings.particles.length / settings.particles.duration, // particles/sec
          time;
 
        // get point on heart with -PI <= t <= PI
        function pointOnHeart(t) {
          return new Point(
            160 * Math.pow(Math.sin(t), 3),
            130 * Math.cos(t) -
              50 * Math.cos(2 * t) -
              20 * Math.cos(3 * t) -
              10 * Math.cos(4 * t) +
              25
          );
        }
 
        // creating the particle image using a dummy canvas
        var image = (function () {
          var canvas = document.createElement("canvas"),
            context = canvas.getContext("2d");
          canvas.width = settings.particles.size;
          canvas.height = settings.particles.size;
          // helper function to create the path
          function to(t) {
            var point = pointOnHeart(t);
            point.x =
              settings.particles.size / 2 +
              (point.x * settings.particles.size) / 350;
            point.y =
              settings.particles.size / 2 -
              (point.y * settings.particles.size) / 350;
            return point;
          }
          // create the path
          context.beginPath();
          var t = -Math.PI;
          var point = to(t);
          context.moveTo(point.x, point.y);
          while (t < Math.PI) {
            t += 0.01; // baby steps!
            point = to(t);
            context.lineTo(point.x, point.y);
          }
          context.closePath();
          // create the fill
          context.fillStyle = "#ea80b0";
          context.fill();
          // create the image
          var image = new Image();
          image.src = canvas.toDataURL();
          return image;
        })();
 
        // render that thing!
        function render() {
          // next animation frame
          requestAnimationFrame(render);
 
          // update time
          var newTime = new Date().getTime() / 1000,
            deltaTime = newTime - (time || newTime);
          time = newTime;
 
          // clear canvas
          context.clearRect(0, 0, canvas.width, canvas.height);
 
          // create new particles
          var amount = particleRate * deltaTime;
          for (var i = 0; i < amount; i++) {
            var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());
            var dir = pos.clone().length(settings.particles.velocity);
            particles.add(
              canvas.width / 2 + pos.x,
              canvas.height / 2 - pos.y,
              dir.x,
              -dir.y
            );
          }
 
          // update and draw particles
          particles.update(deltaTime);
          particles.draw(context, image);
        }
 
        // handle (re-)sizing of the canvas
        function onResize() {
          canvas.width = canvas.clientWidth;
          canvas.height = canvas.clientHeight;
        }
        window.onresize = onResize;
 
        // delay rendering bootstrap
        setTimeout(function () {
          onResize();
          render();
        }, 10);
      })(document.getElementById("pinkboard"));
    </script>
  </body>
</html>