Calling newly defined method from anonymous class

Question

I instantiated an object of an anonymous class to which I added a new method.

Date date = new Date() {
    public void someMethod() {}
}

I

Answer 1

No, that is what method-local classes are for.

 class MyDate extends Date() {
   public void someMethod() {...}
 }
 MyDate date = new MyDate();
 date.someMethod();