Data Analytics Associate Interview Questions and Answers

Method overloading is when multiple methods have the same name but different parameters. Method overriding is when a subclass provides a different implementation of a method inherited from its superclass.

• Method overloading allows a class to have multiple methods with the same name but different parameters.

• Method overriding occurs when a subclass provides a different implementation of a method that is already defined in its superclass.

• Method overloading is determined at compil...read more

OOPS stands for Object-Oriented Programming System. It is a programming paradigm that uses objects and classes to organize code.

• OOPS allows for modular and reusable code.

• It provides encapsulation, inheritance, and polymorphism.

• Encapsulation helps in hiding the internal details of an object.

• Inheritance allows for the creation of new classes based on existing ones.

• Polymorphism enables objects to take on multiple forms or behaviors.

• OOPS promotes code reusability and maintainabil...read more

A class is a blueprint for creating objects, while an object is an instance of a class.

• A class defines the properties and behaviors that objects of the class will have.

• An object is created from a class and can have its own unique values for the properties defined in the class.

• Classes and objects are fundamental concepts in object-oriented programming.

• Example: Class - Car, Object - Honda Civic

Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.

• Inheritance allows for code reuse and promotes modularity.

• There are different types of inheritance such as single, multiple, multilevel, and hierarchical inheritance.

• Inheritance is represented using the 'extends' keyword in most programming languages.

• An example of inheritance is a 'Car' class inheriting properties and behaviors from a 'Vehicle' class.

• Inhe...read more