Inheritance

Inheritance means

• Sub class extends Base class

• Sub class extends super class

• Sub class create object of super class

• All of the above

Which of this keyword must be used to inherit a class?

• this

• super

• extent

• extends

What is not type of inheritance?

• Single inheritance

• Double inheritance

• Multiple inheritance

• Hierarchical inheritance

What are the features reused using Inheritance in Java?

• Variables

• Constants

• Methods

• All the above

Which inheritance in java programming is not supported

A.

B.

C. Multiple inheritance using classes

D.

• Single inheritance

• Multilevel inheritance

• Multiple inheritance using classes

• Multiple inheritance using interfaces

Which of these keywords is used to refer to member of base class from a sub class?

• super

• upper

• this

• None of the mentioned

A class member declared protected becomes member of subclass of which type?

A.

B.

C.

D.

• public member

• private member

• static member

• protected member

Using which of the following, multiple inheritance in Java can be implemented?

• Interfaces

• Multithreading

• Private methods

• Protected methods

The class that is being inherited or subclassed is called ___.

A.

B.

C.

D.

• Subclass

• Superclass

• Both A and B

• None of these

Java language supports ___ type of inheritance.

A.

B.

C.

D.

• Multiple Inheritance

• Multi-Level Inheritance

• Both A and B

• None of these