Course Content
Introduction to C#
What is C#? C# (pronounced "C sharp") is a general-purpose, modern programming language developed by Microsoft as part of its .NET framework. It was first introduced in 2000 and has since become one of the primary languages used for building Windows desktop applications, web applications, and other software solutions on the Microsoft platform. C# is an object-oriented programming (OOP) language that combines the power and flexibility of C++ with the simplicity and ease of use of Visual Basic. It is designed to be a simple, efficient, and type-safe language that enables developers to create robust and scalable applications. Some key features of C# include: • Object-Oriented Programming (OOP): C# supports fundamental OOP concepts such as encapsulation, inheritance, and polymorphism, allowing developers to create modular and reusable code. • Type Safety: C# enforces strict type checking, which helps prevent errors and promotes code reliability. • Garbage Collection: C# includes automatic memory management through a garbage collector, which frees developers from managing memory manually. • Language Integration: C# integrates seamlessly with other .NET languages, allowing developers to leverage existing libraries and components. • Rich Standard Library: C# provides a comprehensive standard library that offers a wide range of functionality for common tasks, including input/output operations, network programming, and database access. • Platform Independence: While C# was initially designed for Windows development, it has expanded its reach through cross-platform frameworks like .NET Core and Xamarin, enabling developers to build applications that run on multiple operating systems, including Windows, macOS, and Linux. Overall, C# is a versatile language that empowers developers to build a variety of software applications, from desktop applications and web services to mobile apps and games, using the .NET framework.
0/4
Setting up the development environment
A key component of C# development is the Visual Studio integrated development environment (IDE). This lesson lets you look into the IDE. You learn how to configure it for C# development.
0/6
Basic syntax and concepts (C# Basics)
This topic contains fundamentals of C# programming
0/6
Classes and objects
Classes and objects In C#, classes and objects are fundamental concepts of object-oriented programming (OOP). They provide a way to define the structure and behavior of objects, which are instances of classes. Here's an overview of classes and objects in C#:
0/9
Advanced topics
Certainly! Here are a few advanced topics in C# that you might find interesting:
0/5
Project organization
0/1
About Lesson

Constructors:

  • A constructor is a special method that is called when an object is created.
  • It is used to initialize the object’s fields or perform any necessary setup.
  • Constructors have the same name as the class and do not have a return type.

Example:

class Person

{

    public string name;

    public int age;

    // Constructor

    public Person(string n, int a)

    {

        name = n;

        age = a;

    }

    public void SayHello()

    {

        Console.WriteLine(“Hello, my name is ” + name + ” and I am ” + age + ” years old.”);

    }

}

Person person2 = new Person(“Alice”, 30);

person2.SayHello();  // Output: Hello, my name is Alice and I am 30 years old.

Access Modifiers:

  • Access modifiers define the visibility and accessibility of class members (fields, methods, constructors) from outside the class.
  • The main access modifiers in C# are public, private, protected, and internal.

Example:

class Person

{

    public string name;        // Accessible from anywhere

    private int age;           // Accessible only within the class

    protected string address;  // Accessible within the class and derived classes

    internal string phone;     // Accessible within the same assembly

    // …

}

Inheritance:

  • Inheritance is a mechanism that allows a class (derived class) to inherit the properties and methods of another class (base class).
  • The derived class extends the base class and can add new members or override existing ones.
  • It promotes code reuse and facilitates the creation of class hierarchies.

Example:

class Student : Person

{

    public string studentId;

    public Student(string n, int a, string id)

        : base(n, a)

    {

        studentId = id;

    }

    // Additional methods and fields specific to the Student class

}

Classes and objects form the building blocks of object-oriented programming in C