Vistex Asia Pacific Junior Developer Interview Questions and Answers

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they were objects of the same class.

• It is achieved through method overriding and method overloading.

• Examples include function overloading, operator overloading, and inheritance.

• Polymorphism helps in creating reusable and flexible code.

Function overriding is a feature in object-oriented programming where a subclass provides a different implementation of a method that is already defined in its superclass.

• Function overriding is used to achieve polymorphism in OOP.

• The method signature of the overridden method in the subclass must match that of the superclass.

• The access level of the overridden method in the subclass cannot be more restrictive than that o...read more