can we take more than one null values for Unique
constraints.
What is the mapping mechanism used by java to identify IDL language?
When should you use arraylist and when should you use linkedlist?
how to identify duplicate values in arraylist
Which class should you use to obtain design information about an object in java programming?
What is final access modifier in java?
Can interface be private in java?
What are java packages?
What are checked exceptions?
What is java full form?
What is the blank final variable?
What is System class and its purpose?
how to minimize the functionality to will not force garbage collector?