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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cpp17

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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

You have to implement a class called `Point` that represents a specific point in the x-y plane. It should contain the following:

* *fields*: 

  * `x`( **integer** type)

  * `y`( **integer** type)

* *methods*:
  * **default constructor** that initializes the point at $(0, 0)$
  * **parameterized constructor** that takes input `x` and `y` and initializes the point to the respective coordinates. 
  * `float distance()`, a *method* which calculates the distance of the point (represented by the object) from the origin, i.e. $(0, 0)$
 
  * `float distance(int x1, int y1)`, a *method*  which calculates the distance between the point represented by the class object and  $(x1, y1)$
 
> The distance between two points $(x, y)$ and $(x1, y1)$ can be calculated by the following formula: 
> $$\text{distance} = \sqrt{(x_1 - x)^2 + (y_1 - y)^2}$$ 
## Sample Input
``` java
    Point p1 = Point(5, 5);
    
```
## Sample Output
``` java
    p1.distance()  => 7.071
    p1.distance(2, 1)  => 5.0
```

# Coding Exercise
First, take a close look and design a step-by-step algorithm before jumping to the implementation. This problem is designed for your practice, so initially try to solve it on your own. If you get stuck, you can always refer to the solution provided in the solution review.

**Good Luck!**

In this exercise, you have to implement a class called Point which can be used to calculate distance between two points in x-y plane. 

Introduction

Functions

Pointers

Classes

OOP in C++ Exam 1

Data Hiding

Inheritance

Polymorphism

Composition, Aggregation and Association

OOP in C++ Exam 2

Challenge 4: Calculate Distance Between Points

Problem Statement