Gain insights into OOP with C#. Delve into practical coding examples and exercises, exploring OOP concepts through a real-world vending machine project to understand and apply them effectively.

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

All the concepts of object-oriented programming that C# developers love to have in their arsenal are explained in detail along with relevant coding examples and exercises in this course.

This course is unique in its nature as it follows a project-based learning approach. Throughout the course, a real-world example of vending machine is followed to help the learners develop a firm understanding of the stated OOP concepts.

The learners will not only be able to play around with the project,  they’ll also be able to see all the concepts in action in this project.

Learn Object-Oriented Programming in C#

// Base Class
class Laptop {

  // Private Data Members
  public string Name{get; set;}

  public Laptop() { // Default Constructor
  
  }

  public Laptop(string name) { // Default Constructor
    this.Name = name;  
  }

}

// Derived Class
class Dell : Laptop { 
  public Dell(string name) 
  : base(name)
  { 

  }

}

class Demo {
  public static void Main(string[] args) {
   Dell dell = new Dell("Dell Inspiron");
   Console.WriteLine(dell.Name);
    
  }
} 

// Base Class
class Laptop {

  // Private Data Members
  private String name;

  public Laptop() { // Default Constructor
    name = "";  
  }

  public Laptop(String name) { // Default Constructor
    this.name = name;  
  }

  // Getter Function
  public String getName() {
    return name;
  }
}

// Derived Class
class Dell extends Laptop { 

  public Dell() { // Default Constructor

  }

  public Dell(String name) { // Parametrized Constructor

    // Write your code here 
    super(name);
  }

  public String getDetails() { 
    return getName();
  }

}

## Explanation

* **Line 20:**  Using the `base` keyword, we have called the base class constructor. When we create the derived class object, it first calls the base class constructor and sets the `Name` of the Laptop.

This review provides a detailed analysis on how to solve the 'Implement the Parametrized Constructor' challenge.

Introduction to Object-Oriented Programming

Classes and Objects

Data Hiding

Inheritance

Polymorphism

Abstract Classes and Interfaces

Composition, Aggregation and Association

Solution Review: Implement the Parametrized Constructor