public class ThreeListener implements MouseMotionListener,MouseListener,WindowListener{...}
编译时提示我“ThreeListener is not abstract and does not override abstract method windowDeiconified(java.awt.event.WindowEvent) in java.awt.event.WindowListener”
请问这是为什么?谢谢
编译时提示我“ThreeListener is not abstract and does not override abstract method windowDeiconified(java.awt.event.WindowEvent) in java.awt.event.WindowListener”
请问这是为什么?谢谢
是java.awt.event.WindowListener里的抽象方法,
你的类实现了这个接口就必须要覆写这个方法.