java满屏飘爱心代码

以下是Java代码实现屏幕飘爱心效果：

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

public class LoveScreen extends JFrame {

    private static final long serialVersionUID = 1L;

    private static final int WIDTH = 800;
    private static final int HEIGHT = 600;

    private static final int HEART_SIZE = 30;

    private static final int MAX_HEARTS = 50;

    private List<Point> hearts;

    public LoveScreen() {
        super("Love Screen");

        hearts = new ArrayList<Point>();

        setSize(WIDTH, HEIGHT);
        setDefaultCloseOperation(EXIT_ON_CLOSE);

        JPanel panel = new JPanel() {
            private static final long serialVersionUID = 1L;

            @Override
            protected void paintComponent(Graphics g) {
                super.paintComponent(g);
                g.setColor(Color.RED);
                g.setFont(new Font("Arial", Font.BOLD, HEART_SIZE));
                for (Point p : hearts) {
                    g.drawString("\u2665", p.x, p.y);
                }
            }
        };

        Timer timer = new Timer(100, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                if (hearts.size() < MAX_HEARTS) {
                    Random random = new Random();
                    int x = random.nextInt(WIDTH - HEART_SIZE);
                    int y = random.nextInt(HEIGHT - HEART_SIZE);
                    hearts.add(new Point(x, y));
                }
                for (Point p : hearts) {
                    p.y += 5;
                }
                panel.repaint();
            }
        });

        getContentPane().add(panel);
        setVisible(true);

        timer.start();
    }

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

}

运行代码后，屏幕上会随机飘动50个爱心。可以根据自己的需要修改爱心数量、大小、颜色等参数。