Quiz #2 (Refer to Javatpoint in answering these question)

If a class has multiple methods having same name but different in parameters, it is known as _______ ?

• Method Overriding

• Method Overloading

• Method Overruling

• Method Initialization

If subclass (child class) has the same method as declared in the parent class, it is known as _______?

• Method Overruling

• Method Initialization

• Method Overriding

• Method Overloading

Below are different ways to overload the method, EXCEPT (choose 2):

• By changing the parameters

• By changing number of arguments

• By changing the data type

• By changing the class name

Can we override static method?

• No, because the static method is bound with class whereas instance method is bound with an object.

• Yes, static belongs to the class area, and an instance belongs to the heap area.

• It depends upon the situation.

• None of the above

What does the 'final' keyword do? Choose an accurate statement.

• If you make any variable as final, you can still change the value of final variable.

• If you make any variable as final, you cannot change the value of final variable (It will be constant).

• If you make any variable as final, you cannot change the parameter of final variable.

• If you make any variable as final, you cannot change the argument of final variable.

It is a concept by which we can perform a single action in different ways. It is derived from 2 Greek words: 

• Polymorphism

• Abstraction

• Inheritance

• Encapsulation

It is a mechanism in which one object acquires all the properties and behaviors of a parent object. It is an important part of OOP (Object Oriented programming system).

• Polymorphism

• Abstraction

• Inheritance

• Encapsulation

If you make any method as final, you cannot override it.

• True

• False

• It depends on the situation.

Choose 2 accurate statements about the rules for Java Method Overriding:

• The method must have the same parent class in the superclass

• The method must have the same name as in the parent class

• The method must have the same parameter as in the parent class.

• The method must have the same parameter as in the subclass.

• The method must have the same arguments in the parent class.

Any entity that has state and behavior is known as?

• Class

• Object

• Method

• Behaviour