idea中java实现爱心代码

在IntelliJ IDEA中，如果你想用Java语言绘制一个简单的爱心图案，可以使用Swing库或者JavaFX图形API。这里提供一个简单的Swing代码示例，它创建了一个由矩形组成的爱心：

import javax.swing.*;
import java.awt.*;

public class LoveHeart extends JFrame {
    public LoveHeart() {
        setSize(300, 300);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout());

        // 创建心形区域
        JPanel lovePanel = new JPanel();
        lovePanel.setLayout(null);
        lovePanel.setBackground(Color.RED);

        // 上半部分弧线
        Rectangle upperHalf = new Rectangle(50, 75, 150, 150);
        upperHalf.setArc(45, -90, 180, 180);
        lovePanel.add(upperHalf);

        // 下半部分两个三角形
        int triangleLength = 50;
        Triangle leftTriangle = new Triangle(lovePanel.getWidth() / 2 - triangleLength, lovePanel.getHeight() / 2 + triangleLength, triangleLength);
        Triangle rightTriangle = new Triangle(lovePanel.getWidth() / 2 + triangleLength, lovePanel.getHeight() / 2 + triangleLength, triangleLength);
        lovePanel.add(leftTriangle);
        lovePanel.add(rightTriangle);

        add(lovePanel);
        setVisible(true);
    }

    private static class Triangle extends JPanel {
        private int x, y, length;

        Triangle(int x, int y, int length) {
            this.x = x;
            this.y = y;
            this.length = length;
            setBackground(Color.RED);
            setOpaque(true); // 设置背景可见
            setPreferredSize(new Dimension(length, length));
        }

        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            Graphics2D g2d = (Graphics2D) g;
            g2d.fillPolygon(new int[]{x, x+length, x-length}, new int[]{y, y, y+length}, 3);
        }
    }

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