小编chr*_*hic的帖子

我到处搜寻,我找不到答案.
如何在java中旋转Rectangle？

这是我的一些代码:

package net.chrypthic.Space;

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

public class Space extends JPanel implements ActionListener{
    Timer time;
    public Space()
    {
        setVisible(true);
        setFocusable(true);
        addMouseMotionListener(new ML());
        addMouseListener(new ML());
        addKeyListener(new AL());
        time=new Timer(5, this);
        time.start();
    }
    public void paint(Graphics g)
    {
        super.paint(g);
        Graphics2D g2d = (Graphics2D)g;
        g2d.setColor(Color.WHITE);
        Rectangle rect2 = new Rectangle(100, 100, 20, 20);

        g2d.draw(rect2);
        g2d.fill(rect2);
    }
    public void actionPerformed(ActionEvent ae) {
        repaint();
    }
    public class AL extends KeyAdapter
    {
        public void keyPressed(KeyEvent e) {
        }

        public void keyReleased(KeyEvent …