JAVA实现一个皮卡丘动画代码

很高兴回答您的问题！以下是JAVA实现一个皮卡丘动画的代码：

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

public class PikachuAnimation extends JFrame {
  private static final long serialVersionUID = 1L;
  private int x = 50, y = 50;
  private final int SCALE = 2;

  private PikachuAnimation() {
    super("Pikachu Animation");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);
    setPreferredSize(new Dimension(300, 300));
    pack();
    setVisible(true);
  }

  public static void main(String[] args) {
    new PikachuAnimation().run();
  }

  private void run() {
    while (true) {
      try {
        Thread.sleep(50);
      } catch (Exception e) {
        e.printStackTrace();
      }
      x += 5;
      if (x > getWidth()) {
        x = -150;
      }
      repaint();
    }
  }

  protected void paintComponent(Graphics g) {
    super.paintComponents(g);
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    g2.setColor(Color.WHITE);
    g2.fillRect(0, 0, getWidth(), getHeight());

    g2.setColor(Color.BLACK);
    g2.setStroke(new BasicStroke(4));

    // draw ears
    g2.fillOval(x - 25 * SCALE, y - 80 * SCALE, 40 * SCALE, 80 * SCALE);
    g2.fillOval(x + 27 * SCALE, y - 80 * SCALE, 40 * SCALE, 80 * SCALE);
    g2.fillOval(x - 25 * SCALE, y - 75 * SCALE, 32 * SCALE, 64 * SCALE);
    g2.fillOval(x + 29 * SCALE, y - 75 * SCALE, 32 * SCALE, 64 * SCALE);

    // draw head
    g2.setColor(new Color(250, 219, 51));
    g2.fillOval(x - 40 * SCALE, y - 32 * SCALE, 80 * SCALE, 70 * SCALE);
    g2.setColor(Color.BLACK);
    g2.drawOval(x - 40 * SCALE, y - 32 * SCALE, 80 * SCALE, 70 * SCALE);

    // draw nose
    g2.fillOval(x - 5 * SCALE, y - 10 * SCALE, 10 * SCALE, 14 * SCALE);

    // draw eyes
    g2.fillOval(x - 23 * SCALE, y - 30 * SCALE, 18 * SCALE, 18 * SCALE);
    g2.fillOval(x + 5 * SCALE, y - 30 * SCALE, 18 * SCALE, 18 * SCALE);
    g2.setColor(Color.WHITE);
    g2.fillOval(x - 21 * SCALE, y - 27 * SCALE, 9 * SCALE, 9 * SCALE);
    g2.fillOval(x + 7 * SCALE, y - 27 * SCALE, 9 * SCALE, 9 * SCALE);

    // draw cheeks
    g2.setColor(new Color(251, 150, 17));
    g2.fillOval(x - 43 * SCALE, y - 8 * SCALE, 26 * SCALE, 16 * SCALE);
    g2.fillOval(x + 17 * SCALE, y - 8 * SCALE, 26 * SCALE, 16 * SCALE);

    // draw mouth
    g2.setStroke(new BasicStroke(3));
    g2.drawArc(x - 17 * SCALE, y - 5 * SCALE, 35 * SCALE, 20 * SCALE, 190, 160);

    // draw arms
    g2.setColor(new Color(250, 219, 51));
    g2.fillRect(x - 48 * SCALE, y + 25 * SCALE, 25 * SCALE, 10 * SCALE);
    g2.fillRect(x + 23 * SCALE, y + 26 * SCALE, 25 * SCALE, 10 * SCALE);

    // draw body
    g2.fillRect(x - 35 * SCALE, y + 15 * SCALE, 70 * SCALE, 30 * SCALE);
    g2.setColor(Color.BLACK);
    g2.drawRect(x - 35 * SCALE, y + 15 * SCALE, 70 * SCALE, 30 * SCALE);

    // draw legs
    g2.fillRect(x - 22 * SCALE, y + 45 * SCALE, 20 * SCALE, 30 * SCALE);
    g2.fillRect(x + 2 * SCALE, y + 45 * SCALE, 20 * SCALE, 30 * SCALE);
    g2.drawRect(x - 22 * SCALE, y + 45 * SCALE, 20 * SCALE, 30 * SCALE);
    g2.drawRect(x + 2 * SCALE, y + 45 * SCALE, 20 * SCALE, 30 * SCALE);
    g2.fillOval(x - 24 * SCALE, y + 72 * SCALE, 25 * SCALE, 13 * SCALE);
    g2.fillOval(x + 5 * SCALE, y + 72 * SCALE, 25 * SCALE, 13 * SCALE);
  }
}

这段代码可以实现一个可爱的皮卡丘在窗口里不停跳动的动画效果。希望对您有所帮助！