Anonymous Inner Class (匿名内部类) 是否可以extends(继承)其它类，是否可以implements(实现)interface(接口)?

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匿名的内部类是没有名字的内部类。可以(extends继承) 其它类，也可以实现接口。
匿名内部类要实现或者继承类是可以的，当然匿名内部类不能用implements，extends关键字来实现或继承其它类的

Java代码

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packageother;
  
importjava.awt.event.WindowEvent;
importjava.awt.event.WindowListener;
  
importjavax.swing.JFrame;
  
publicclassTest { 
    JFrame frame=newJFrame();
      
    publicTest() {
      
        frame.addWindowListener(newWindowListener() {
  
            publicvoidwindowOpened(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
  
            publicvoidwindowClosing(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
  
            publicvoidwindowClosed(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
  
            publicvoidwindowIconified(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
  
            publicvoidwindowDeiconified(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
  
            publicvoidwindowActivated(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
  
            publicvoidwindowDeactivated(WindowEvent e) {
                thrownewUnsupportedOperationException("Not supported yet.");
            }
        });
    }
  
}
这个匿名类就是实现了接口WindowListener
或者：
  
    frame.addWindowListener(newWindowAdapter() {});
  
  
上面这个匿名类就是继承了WindowAdapter这个抽象类。
描述：Anonymous Inner Class (匿名内部类) 是否可以extends(继承)其它类，是否可以implements(实现)interface(接口)吗？ 匿名类本身就是通过继承类或者接口来实现的。但是不能再显式的extends 或者implements了。