can we take more than one null values for Unique
constraints.
How finally used under exception handling?
what is webservices?
What are white spaces in java?
What is the size of a string in java?
What is 3-tier model?
What is the use of http-tunneling in rmi?
What is keyset in java?
What is difference between equal and == in java?
Can u write constructor in abstract.If yes den when it will be invoked.
What is overloading and overriding in java?
What does it mean that strings are immutable?
Define how can we find the actual size of an object on the heap?