Quiz on Polymorphism in Object Oriented Programming

What does polymorphism mean?

• One form

• Many forms

• Static behavior

• Single action

Which of the following is a real-life example of polymorphism?

• A person being a father, husband, and employee

• A car being red and fast

• A tree growing taller

• A book being read

What is the main feature of polymorphism in OOP?

• Multiple inheritance

• Single interface with multiple implementations

• Static typing

• Dynamic binding

What is the term for a class that can refer to a child class object?

• Abstract class

• Polymorphic class

• Parent class

• Reference class

What is method overriding?

• Changing the method name

• Combining two methods

• Creating a new method

• A child class redefining a method from its parent

What type of polymorphism is achieved by method overloading?

• Static polymorphism

• Compile-time polymorphism

• Virtual polymorphism

• Dynamic polymorphism

What does the 'super' keyword do in method overriding?

• Creates a new method

• Calls the parent class method

• Declares a variable

• Overrides the method

In Java, what is true about all objects?

• They are all polymorphic

• They are all static

• They must be final

• They cannot be inherited

What is dynamic polymorphism?

• Resolved at compile time

• Resolved at runtime

• Static binding

• Method overloading

What is the result of invoking an overridden method?

• It causes a compile-time error

• It depends on the reference type

• The child method is always called

• The parent method is always called