Working with the class keyword in Java

Question

I don\'t really understand how the class keywords work in some instances.

For example, the get(ClientResponse.class) method takes the Cl

Answer 1

Here ClientResponse.class is an instance of Class. In general Class object represents type of an object. When you create new instance:

Object obj = new ClientResponse()

you can retrieve the class (type) of that object by calling:

obj.getClass()

So, why would you pass Class objects around? It's less common, but one reason is to allow some method create arbitrary number of instances of a given class:

ClientResponse resp = ClientResponse.newInstance();