package com.hidata.hiops.paas.demo;
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 TestDemo 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 final int WINDOW_WIDTH = Toolkit.getDefaultToolkit()
.getScreenSize()
.width;
private static final int WINDOW_HEIGHT = Toolkit.getDefaultToolkit()
.getScreenSize()
.height;
//构造函数
public TestDemo()
{
//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;
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.setFont(new Font("楷体", Font.BOLD, 40)); //设置字体
pic.drawString("我爱你", 180, 200); //绘制字符串
pic.drawString("一万年", 220, 240); //绘制字符串
pic.setColor(Color.RED);
pic.fillOval((int) x, (int) y, 2, 2);
}
//生成图片
g.drawImage(image, 0, 0, this);
}
}
}
class CardioidDemo {
public static void main(String[] args)
{
new TestDemo();
}
}
