匿名类如何使用“扩展”或“实现”？

Runnable r = new Runnable() {
   public void run() { ... }
};

SomeClass x = new SomeClass() {
   ...
};

new Runnable() { // implements Runnable!
   public void run() {}
}

JFrame.addWindowListener( new WindowAdapter() { // extends  class
} );

 public class MyClass {
   private interface MyInterface extends Runnable, WindowListener { 
   }

   Runnable r = new MyInterface() {
    // your anonymous class which implements 2 interaces
   }

 }

button.addActionListener(new ActionListener(){ // ActionListener is an interface
    public void actionPerformed(ActionEvent e){
    }
});

// The interface
interface Blah {
    void something();
}

...

// Something that expects an object implementing that interface
void chewOnIt(Blah b) {
    b.something();
}

...

// Let\'s provide an object of an anonymous class
chewOnIt(
    new Blah() {
        @Override
        void something() { System.out.println(\"Anonymous something!\"); }
    }
);

Interface in = new InterFace()
{

..............

}

Class cl = new Class(){

.................

}

return new (class implements MyInterface {
    @Override
    public void myInterfaceMethod() { /*do something*/ }
});

return new (class implements MyInterface, AnotherInterface {
    @Override
    public void myInterfaceMethod() { /*do something*/ }

    @Override
    public void anotherInterfaceMethod() { /*do something*/ }
});

public AnotherInterface createAnotherInterface() {
    class LocalClass implements MyInterface, AnotherInterface {
        @Override
        public void myInterfaceMethod() { /*do something*/ }

        @Override
        public void anotherInterfaceMethod() { /*do something*/ }
    }
    return new LocalClass();
}