java代码编辑一个心形图案
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.JFrame;
@SuppressWarnings(“serial”)
public 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();
}
}