What does (angle brackets) mean in Java?

Question

I am currently studying Java and have recently been stumped by angle brackets(<>). What exactly do they mean?

public class Pool{
    public inter         


        

Answer 1

is called a generic type. You can instantiate an object Pool like this:

PoolFactory pool = new Pool();

The generic parameter can only be a reference type. So you can't use primitive types like int or double or char or other primitive types.