What is a instance variable in java?
Hai all I want to print given array in reverse order Ex: int a[]={1,2,3,4,5};display this array in reverse order.
What is a hashmap used for?
What are the uses of synchronized keyword?
When do we use synchronized methods in java?
Why do we need singleton?
What is valid keyword in java?
What is an infinite loop?
Give example to differentiate between call by value and call by reference.
Why java uses the concept of the string literal?
What is the difference between sop and work instruction?
I want my class to be developed in such a way that no other class (even derived class) can create its objects. How can I do so?
What are library required to connect to excel sheet.