How do you add an element to a set in java?
Why do we need singleton?
Can try statements be nested?
what is the use of finalize()Method please explain with an example
How many tetrahedral voids are there in bcc?
Why does abstract class have constructor?
Explain the concept of polymorphism with examples?
Can we create an object if a class doesn't have any constructor ( not even the default provided by constructor ) ?
Why main() method is public, static and void in java ?
Why is multithreading important?
Can we extend singleton class?
Can constructor be synchronized?
What is navigable map in java?