Difference between object and reference?
What is the private method modifier?
What are the types of methods in java?
What are access modifiers?
Is alive method in java?
Which object oriented concept is achieved by using overloading and overriding?
What is main method?
What is the use of math abs in java?
What's the difference between comparison done by equals method and == operator?
Which is best ide for java?
Is hashset ordered?
What is an example of declaration?
Explain abstract class in java?