What to do with type parameter during inheritance?

Question

Java

And so there is a superclass with a type parameter, let's say SuperClass<T>a subclass inherits from it. Also what at such inheritance to do with type parameter? Does a subclass need to declare its own type parameter? Eg. SubClass<T> extends SuperClass. How to be at creation of instances?

Answer 1

Depends on the subclass.
If it's as generic as the superclass, it's written like this:
Can inherit a particular specialization of the superclass:
Can do like this:
P.S. I advise you to spend your time and read thoughtfully docs.oracle.com/javase/tutorial/java/generics/, or resp. chapter in any Java textbook. Then save a lot of time on plugs like this (but it can be worse with generics).