Delve into Object-Oriented Programming in C++ and discover key concepts like classes, objects, inheritance, and polymorphism to create efficient, reusable, and secure code through hands-on challenges.

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Object-oriented programming (OOP) has been around for decades. If you have a basic understanding of C++ and are interested in leveling up your skills, this class will help you do just that. 

Starting with an overview of the basics, you’ll dive into understanding the time-honored technique for implementing complex applications using user-defined classes. Followed up by discussing classes and objects, and then building up to the high-level topics including inheritance and polymorphism. 

Throughout the course, you’ll be fully immersed in OOP for C++, with illustrations, exercises, quizzes, and hands-on challenges every step of the way. 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 C++

# Problem Statement 

Write a code that has:
* A **parent** *class* named `Account`. 
  * Inside it *define*: 
    * a protected float member `balance` 
  * We have three virtual functions:   
    * `void Withdraw(float amount)` 
    * `void Deposit(float amount)`
    * `void printBalance()`
   

* Then, there are **two derived** *classes* 
  * `Savings` class  
     * has a *private* member `interest_rate` set to 0.8
     * `Withdraw(float amount)` deducts *amount* from *balance* with *interest_rate*
        * `Deposit(float amount)` adds *amount* in *balance* with *interest_rate*
        * `printBalance()` displays the balance in the *account*
  * `Current` class 
     * `Withdraw(float amount)` deducts *amount* from *balance*
        * `Deposit(float amount)` adds *amount* in *balance*
        * `printBalance()` displays the balance in the *account*`


## Input 
* In `Savings` class, `balance` is set to **50000** in parametrized constructor of `Savings` object
* In `Current` class, `balance` is set to **50000** in parametrized constructor of `Current` object

Here's a sample result which you should get.

## Sample Input 
```C++
  Savings s1(50000);
  Account * acc = &s1;
  acc->Deposit(1000);
  acc->printBalance();
  
  acc->Withdraw(3000);
  acc->printBalance();
  
  
  Current c1(50000);
  acc = &c1;
  acc->Deposit(1000);
  acc->printBalance();
  
  acc->Withdraw(3000);
  acc->printBalance();  
```

## Sample Output

In this challenge, we'll implement an account class along with two derived classes saving and current.

Introduction

Functions

Pointers

Classes

OOP in C++ Exam 1

Data Hiding

Inheritance

Polymorphism

Composition, Aggregation and Association

OOP in C++ Exam 2

Challenge 1: Implement an Account Class Using Virtual Functions

Problem Statement