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#

```c#
class ParentClass : class ChildClass{...}

```c#
class ChildClass :  class ParentClass {...}

```c#
class ChildClass : ParentClass {...}

Which one of the following is the generic syntax to derive a class from another class?

Which one of the following is the generic syntax to derive a class from another class?

A derived class can use all the fields and methods of the superclass directly which are: 

A derived class can use all the fields and methods of the superclass directly which are:

Subclass is not calling the parent class constructor

Superclass is not calling the subclass constructor

```C#
class A {
    
    int i;
    public A(int i)
    {
        this.i=i; 
    }
    
}
class B : A{
    
    int j;
    public B(int j)
    {
        this.j=j;
    }
    
}
```
The above code won't compile because:

<pre><code class="language-C#">class A {
 
 int i;
 public A(int i)
 {
 this.i=i; 
 }
 
}
class B : A{
 
 int j;
 public B(int j)
 {
 this.j=j;
 }
 
}
</code></pre>
The above code won’t compile because:

Any of the methods and fields can be called

The `base` keyword can be used to call any of the non-private _____.

The <code>base</code> keyword can be used to call any of the non-private _____.

Calls to constructors using `this( )` or `base( )` can be written:

Calls to constructors using <code>this( )</code> or <code>base( )</code> can be written:

Let's test your understanding of inheritance with the help of this short quiz.

Introduction to Object-Oriented Programming

Classes and Objects

Data Hiding

Inheritance

Polymorphism

Abstract Classes and Interfaces

Composition, Aggregation and Association

Quiz