壹般用Graphic2D 來實現
g2d 裏有rotate、translate、scale方法
代碼片段如下：
public?void?paintComponent(Graphics?g){
Graphics2D?g2?=?(Graphics2D)g;
g2.rotate(Math.toRadians(45));
g2.drawImage(image,?0,?0,?this.getWidth(),?this.getHeight(),?null);
}