表白心形:
import java.awt.*;
import java.awt.color.*;
import java.awt.event.*;
import java.awt.image.*;
import java.awt.Graphics;
public class Heart {
public static void main(String[] args){
new Cardioid();
}
}
class Cardioid extends Frame{
//定义窗口大小
private static final int WIDTH=800;
private static final int HEIGHT=750;
//获取屏幕大小
private static int WINDOW_WIDTH=Toolkit.getDefaultToolkit().getScreenSize().width;
private static int WINDOW_HEIGHT=Toolkit.getDefaultToolkit().getScreenSize().height;
//窗口
public Cardioid(){
//设置窗口标题
super("心形线");
this.setBackground(Color.BLACK);
this.setLocation((WINDOW_WIDTH-WIDTH)/2,(WINDOW_WIDTH-HEIGHT)/2);
this.setSize(WIDTH, HEIGHT);
this.setLayout(getLayout());
this.setVisible(true);
this.addWindowListener(new WindowListener());
}
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<200;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.GREEN);
pic.fillOval((int)x,(int) y-250,2,2);
}
//生成图片
g.drawImage(image, 0, 0, this);
}
for(int i=100;i<175;i++){
for(int j=0;j<200;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-250,2,2);
}
//生成图片
g.drawImage(image, 0, 0, this);
}
}
}
class WindowListener extends WindowAdapter{
public void windowClosing(WindowEvent e){
Window heart=(Window)e.getComponent();
heart.dispose();
}
}
改进版本:
package Wonderful;
import java.awt.*;
import javax.swing.JFrame;
public class MyHeart {
public static void main(String[] args) {
new Cardioid();
}
}
class Cardioid extends JFrame {
private static final int WIDTH = 1000;
private static final int HEIGHT = 850;
private static final int WINDOW_WIDTH = Toolkit.getDefaultToolkit().getScreenSize().width;
private static final int WINDOW_HEIGHT = Toolkit.getDefaultToolkit().getScreenSize().height;
public Cardioid() {
super("love形线");
this.setBackground(Color.BLACK);
this.setLocation((WINDOW_WIDTH - WIDTH) / 2, (WINDOW_HEIGHT - HEIGHT) / 2);
this.setSize(WIDTH, HEIGHT);
this.setLayout(getLayout());
this.setVisible(true);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}
public void paint(Graphics g) {
double x, y, r;
Image image = this.createImage(WIDTH, HEIGHT);
Graphics pic = image.getGraphics();
for(int i = 0; i < 225; i++) {
for(int j = 0; j < 200; 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;
if(i >= 0 && i < 25)
pic.setColor(Color.RED);
else if(i >= 25 && i < 50)
pic.setColor(Color.ORANGE);
else if(i >= 50 && i < 75)
pic.setColor(Color.YELLOW);
else if( i >= 75 && i < 100)
pic.setColor(Color.GREEN);
else if(i >= 100 && i < 125)
pic.setColor(Color.CYAN);
else if(i >= 150 && i < 175)
pic.setColor(Color.BLUE);
else if(i >= 175 && i < 200)
pic.setColor(Color.pink);
else
pic.setColor(Color.cyan);
pic.fillOval((int)x, (int)y - 250, 2, 2);
}
g.drawImage(image, 0, 0, this);
}
}
}