Question

I have class like Test.I am passing class as argument.

What is the difference between the below code :

    Map maps = new HashMap();
    maps.put("ARG_ID",Test.class);

and

     Map maps = new HashMap();
     maps.put("ARG_ID",this); 

Answer 1

Test.class is the Class object representing Test, it is used for reflection and generics. this, when referenced in a class, is the current instance of the class you are working on.