请注意 class JPanel2 extends JPanel这一块代码： 我的JP2_1、JP2_2装进JP2_Display里面去了啊，JP2_Display定义为CardLayout . 我查到 CardLayout ...

Animated transitions are key to creating a comfortable, seamless user experience in your Java desktop and Web applications. In this installment of Open source Java projects, Jeff Friesen introduces ...