method overriding

What is method overriding in Java?

• Writing a method in a subclass with the same name of superclass's method

• Mentioning the same return type of the method of the superclass

• The argument list in the method of subclass and the method of superclass should be the same

• All the above

Method Overriding is useful to add extra functionality or code to a method of subclass with the same name as the inherited method.

• True

• False

It is not mandatory to override all or a few methods of the Superclass.

• false

• true

Why should a method be overridden in Java instead of writing a method with a different name?

• Large projects heavily depend on inheritance

• The code-base refers to the same method with the same method signature in different classes of the project

• It is not possible to change the method calling code at all occurrences of the project. It may break the whole project.

• All the above.

The Method-Overloading and Method-Overriding are not the same.

• false

• true

Identify INVALID Java Method Overriding in the below code snippets?

Follow the notation "superclassMethod" and "subclassMethod".

• void superclassMethod(int a, float b){ }

  
  

  void subclassMethod(int a, float b) { }

• void superclassMethod(){ }

  
  

  void subclassMethod(){ }

• int superclassMethod(int a, float b){ }

  
  

  void subclassMethod(int a, float b) { }

• None

A successful Method Overriding calls the method of ___ in Java.

• Superclass

• Subclass

• intermediate super class

• none

A failed method overriding calls the method of a ___ in Java.

• Superclass

• Subclass

• Superclass or Subclass

• None

If the method signature of a Superclass and the method signature of a Subclass are the same, then the subclass method is said to be _____ the superclass's method.

• Overriding

• Overloading

A method of a Superclass can not override the method of the Subclass.

• TRUE

• FALSE