Can we override singleton class?
What is class forname used for?
What is the use of :: in java?
Is a class an object?
Can we create more than one object singleton class?
What is a function in programming?
What is a void method?
Can constructor return value?
How does callback work in java?
What are the disadvantages of object oriented programming?
What are different types of references?
Is a copy constructor?
Can we extend a class with private constructor?
What are the parts of a method?
What does function identity () do?