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

Write a Java **class** called `Student` with 

* `private` *fields*: 

  * `name`(`String` type)

  * `mark1` and `mark2` (**double** type)

And *methods*:

* `getMarks(int markNumber)`, a *method* which should return `mark1` if `markNumber` equals **1** and `mark2` otherwise.
 
* `calcTotal()` *method* should take the **two** marks entered and *return* their **sum**. 

Also *define* **two** *constructors*:
* A *default constructor* that takes **no** *parameters* and *initializes* the values to **zeros** and `null`.
* A *constructor* that takes the **three** *variables* and *sets* them as the *values* of the appropriate *fields*.

## Input
Name of the student and the marks obtained in the first and second tests

## Output
Sum of both marks

## Sample Input
``` java
    Student student = new Student("Jack", 60, 70);
```
## Sample Output
``` java
    getMarks(1)  => 60
    getMarks(2)  => 70
    calcTotal() => 130.0
```

In this exercise, you have to calculate the student's total marks using the concept of Classes

Introduction to Object-Oriented Programming

Classes and Objects

Project: Amazon's Top 50 Bestselling Books Dataset

Data Hiding

Composition, Aggregation and Association

Project: Java Slam Dunk: Coding Skills Through Basketball

Object Oriented Programming in Java - Exam I

Inheritance

Polymorphism

Abstract Classes and Interfaces

Project: Doctor on Call

Object Oriented Programming in Java - Exam II

Challenge 3: Calculate the Student's Total Marks

Problem Statement