guru prasanth wrote:1) in class diagram what's difference between association and uage
There is a typo here. I can't figure out what word you mean by uage.
guru prasanth wrote:2) can a Entity bean(JPA) be super class of session bean
No, Or at least not logically. I don't know if the spec lets you. But it absolutely shouldn't in your assignment submission!
guru prasanth wrote:3) should all the classes in the assignment be part of class diagram
Yes. Otherwise how would the grader know they exist? After all, you don't code the assignment - just design it.