Day 5 - Inheritance, super, final, abstraction, polymorphism

Which of the following is true about inheritance in Java?

• Java supports multiple inheritance using classes
• Java supports multilevel inheritance
• Java does not support inheritance
• Inheritance reduces code reuse

What is the base class of all Java classes?

• Object
• Class
• Main
• Parent

Which keyword is used to inherit a class in Java?

• implements
• extends
• inherit
• base

What is it called when a subclass has its own version of a method?

• Method Overloading
• Method Inheritance
• Method Overriding
• Method Hiding

What is the default access modifier for a class member?

• public
• private
• protected
• package-private

In multilevel inheritance, a class can inherit from:

• Only one class
• Two classes
• Three classes
• Multiple interfaces

Which of these types of inheritance are supported in Java?

• Single
• Multiple
• Hybrid
• Multithreaded

Which keyword is used to call the superclass constructor?

• this
• super
• base
• parent

Which keyword prevents inheritance of a class?

• final
• static
• abstract
• super

If class B extends class A, then B is called:

• Superclass
• Base class
• Derived class
• Parent class