Nandu,
Is there any way to find out code coverage when each of my JUnit test case is ran.
I assume when you say code coverage, you are taking about test coverage which tells you that whether all you code are covered under your Junit test cases.
Clover is one good tool for this. You can integrate it with your
IDE and see the test coverage at class level, package level and project level.
Check the URL for more details
Clover