Hello Giri, welcome to Javaranch.
We don't have too many rules around here, but we'd appreciate it if you'd keep a couple in mind.
For starters, please post your questions in one place only. That makes it easier for people to help you. (I've deleted the duplicate to this question in the other
thread.)
And then there's the famous
javaranch naming policy that we all agree to when we register at javaranch. Please go back to
your profile and add a second name to your display name.
Now where were we? Right, Head First UML approximate release date. Anyone?