I am not clear about the loading of a class. Exactly where is the class loaded.Can we see how much memory is taken by my class. I think the sequence is like this way : 1.Loading : Happens just after we write : java classname Loading means conversion of our class file to binary and bringing that binary to the jvm memory. --please tell me how much memory is available to jvm,and is that memory refers to ram only. I think you people understood what i want to say. Kind let me know the proper sequence and meaning of each step.