What's this generics usage in Java? X.method()

Question

I\'ve read the whole SCJP6 book Sierra and Bates book, scored 88% the exam.

But still, i never heard of how this kind of code works as it\'s not explained in the generic

Answer 1

In this case it is a way of telling the reverseOrder method what kind of ordering should be imposed on the object, based on what type you specify. The comparator needs to get specific information about how to order things.