import javax.swing.*;

public class Heart extends JPanel {
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setColor(Color.RED);

        int[] x = {75, 100, 125, 100};
        int[] y = {100, 75, 100, 125};

        g2d.fillPolygon(x, y, 4);
        g2d.fillOval(50, 50, 50, 50);
        g2d.fillOval(100, 50, 50, 50);
    }
}