回転鮨 | Codetter（こーどったー）

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

class rotSushi {
    public static void main ( String args[] ) {
        MyFrame mf = new MyFrame("rotSushi");
        mf.setVisible(true);
    }
}

class MyFrame extends JFrame implements ActionListener {
    Container contentPane = getContentPane();
    Sushi sushi = new Sushi();
    JPanel p = new JPanel();
    MyFrame ( String title ) {
        setTitle(title);
        setSize(512,512);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        p.add(sushi);
        contentPane.add(p);
        Timer tm = new Timer(30,this);
        tm.start();
    }
    public void actionPerformed ( ActionEvent e ) {
        this.repaint();
        sushi.angle = (sushi.angle+1) % 360;
    }
}

class Sushi extends JLabel {
    public static int angle=0;
    Sushi () {
        setText("鮨");
        setForeground(Color.RED);
        setPreferredSize(new Dimension(512,512));
        setFont(new Font("MS 明朝",Font.BOLD,140));
        setHorizontalAlignment(JLabel.CENTER);
    }
    @Override
    public void paintComponent ( Graphics g ) {
        Graphics2D g2 = (Graphics2D) g;
        g2.rotate(Math.toRadians(angle),256,256);
        super.paintComponent(g);
    }
}