Explore the fundamentals of OOP in Java. Gain insights into inheritance, polymorphism, and more to write clean, modular, reusable code through interactive exercises and practical challenges.

cpp17.tar.gz

Object-oriented programming (OOP) has been around for decades. As the original object-oriented language, Java is a mainstay in the world of computer programming. 

Having a foundation in OOP Java concepts will allow you to write cleaner, more modular, and more reusable code, as well as make it easier for you to understand the codebases of different companies you might be interested in joining.

Starting with the basics and reviewing complex topics like inheritance and polymorphism, this course is filled with illustrations, exercises, quizzes, and hands-on challenges. You’ll walk away with an understanding of classes and objects behavior and be able to easily create simple, efficient, reusable and secure code.

Learn Object-Oriented Programming in Java

# Problem Statement

When a method in a derived class overrides a method in a base class, it is still possible to call the overridden method using the `super` keyword.

> If you write `super.method()`, it will call the method that was defined in the superclass.

You are given a partially completed code in the editor. The class `Shape` is the base class of the `XShape` class. You have to modify the `getName()` method of the derived class, i.e `XShape`, so that the code returns the following:

## Input
Derived Class Name

## Output
Base Class Name, Derived Class Name

## Sample Input

```Java
         Shape circle = new XShape("Circle");
```

## Sample Output
```Java
         "Shape, Circle"
```

The partially completed code in the editor (in the `getName()` function) does not return the correct output so you can modify it as well to make it correct.


Can you override a method in a derived class with the help of super keyword? A solution is placed in the "solution" section to help you, but we would suggest you try to solve it on your own first.

Introduction to Object-Oriented Programming

Classes and Objects

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Data Hiding

Composition, Aggregation and Association

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Object Oriented Programming in Java - Exam I

Inheritance

Polymorphism

Abstract Classes and Interfaces

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Object Oriented Programming in Java - Exam II

Challenge #1: Override a Method using the Super Keyword

Problem Statement