Java Inheritance Quiz

What is inheritance in Java?

• A mechanism where one object acquires properties of another

• A method to override methods

• A way to increase data abstraction

• A type of polymorphism

Which of the following represents the IS-A relationship in Java?

• Inheritance

• Encapsulation

• Polymorphism

• Abstraction

Which keyword is used to inherit a class in Java?

• implements

• extends

• inherits

• uses

What is the benefit of inheritance in Java?

• Code reusability

• Faster execution

• Memory optimization

• Easier syntax

What type of inheritance is not supported directly in Java?

• Single inheritance

• Multilevel inheritance

• Hierarchical inheritance

• Multiple inheritance

In Java, which mechanism is used to achieve multiple inheritance?

• Abstract classes

• Interfaces

• Static methods

• Final classes

What is a subclass?

• A class that extends another class

• A class that is inherited by another class

• A class that cannot be extended

• A class that contains final methods

Which of the following is true for method overriding?

• Must have the same method name but different parameters

• Must have the same method name, return type, and parameters

• Can have different method names

• Can change the return type