reflection java ? extends

Question

Is there any difference between :

Class<?> and Class<? extends Object> Class<? extends Object> ?

Thanks

Answer 1

它实际上是一样的

Answer 2

Nope. They are equivalent.

Answer 3

The same, 'cos every class extends Object .

It's analogous to saying

class MyClass

and

class MyClass extends Object

are the same thing.