C# Course > Object Oriented Programming in C#

Interfaces in C#

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In C Sharp, interfaces are a type of class that provides a way to interact with an object. Interfaces are the bridge between code and the object that is being used. They provide methods and properties to access the object’s data and functionality.

The different types of interfaces are:

  • Console: The console interface is a text-based interface that can be accessed from a command line. It allows users to interact with the operating system through standard input and output streams, such as reading from the keyboard or writing to screen.
  • Graphical User Interface (GUI): The graphical user interface (GUI) allows users to interact with an application through visual elements such as windows, icons, menus, buttons, etc.
  • Command Line Interface (CLI): The command line interface (CLI) allows users to enter commands for the operating system by typing.

In order to create an interface in C Sharp, you need to have a class that inherits from the System.Windows.Forms.Form class and then add the following code:

  • public partial class Form1 : Form {
  • public Form1() { InitializeComponent(); }
  • public void ShowMessage(string message) { MessageBox.Show(message); }
  • }

In C Sharp, you can use the interface object to interact with a user. The following code example shows how to create an interface object:

  • var myInterface = new Interface();
  • myInterface.showMessage("Hello world!");
  • myInterface.hideMessage();
  • myInterface.getText("Hello");
  • myInterface.getText("World!");
  • myInterface.setText("Hi");

Interfaces in C Sharp have many benefits such as providing a better usability, designing better user interfaces, making it easier for developers to use the code and reducing the time it takes to build an application.

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Ravi Kumar
4

The syllabus and quiz practice is good. Best explain in depth each and every topic. practical program ko explain ke time zoom nhi kiya.

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Bhagyashri Sorte
5

Its good course

V
vaibhav kumar
5

nice

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Sandile Radebe
4

It was very worth it and gained some knowledge , even though it's too much theory.

W
wasim shaikh
4

Please upgrade topics. More quizzes and also on each topic and subtopic end.

A
Aman Kumar Pandit
4

Need more improvement ,Requires More suitable examples

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Ravindra Pathak
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awesome site

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Mohd
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Very good

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Rakesh Jarodiya
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very nice application

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Raj jaiswal
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very good

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Course Content

  1. Introduction to C#
    8m 14s
  2. How to use LearnVern
    3m 20s
  3. C# Environment
    8m 18s

  1. Installing Visual Studio
    16m 14s

  1. C# Program Structure
    9m 31s
  2. Compiling and execution of C# program in Commandline
    2m 7s

  1. Data Types in C#
    5m 27s
  2. Type Conversion in C#
    5m 23s
  3. Variables in C#
    9m 10s
  4. Constants and Literals in C#
    8m 22s
  5. Keywords and Identifiers in C#
    6m 16s
  6. Operators in C#
    12m 58s
  7. Boxing and Unboxing in C#
    3m 46s
  8. String Manipulators
    10m 6s

  1. Conditional Statements in C#
    7m 45s
  2. If else...If else in C#
    7m 56s
  3. Switch Statement in C#
    8m 4s

  1. Looping Statement and For Statement
    8m 6s
  2. While and Do While loop in C#
    10m 32s
  3. Foreach statement and Loop Control in C#
    6m 41s

  1. Arrays in C#
    7m 18s
  2. Multidimensional Arrays in C#
    3m 27s

  1. Structures and Enum in C#
    7m 22s

  1. Class and Object in C#
    7m 4s
  2. Member Functions
    5m 43s

  1. Inheritance in C#
    8m 34s
  2. Polymorphism in C#
    8m 54s
  3. Interfaces in C#
    4m 30s

  1. File I/O in C#
    13m 13s
  2. Advance File IO in C#
    15m 42s
  3. Binary Files in C#
    15m 7s

  1. Exception Handling in C#
    8m 30s
  2. Exception Handling Example in C#
    11m 28s

  1. Attributes in C#
    7m 40s
  2. Attributes- Obsolete in C#
    8m 5s
  3. Reflections in C#
    5m 19s
  4. Properties in C#
    8m 40s
  5. Indexes in C#
    11m 14s
  6. Delegates in C#
    8m 29s
  7. Events in C#
    7m 9s
  8. Collections in C#
    4m 3s
  9. Array List in C#
    11m 43s
  10. Hash Table in C#
    13m 31s
  11. Sorted List in C#
    7m 11s
  12. Stack Class in C#
    4m 27s
  13. Stack Class example in C#
    10m 34s
  14. Queue Class in C#
    9m 56s
  15. Bitarray in C#
    4m 1s
  16. BitArray example in C#
    11m 52s
  17. Generics in C#
    12m 4s
  18. Anonymous methods
    7m 29s
  19. Multithreading in C#
    9m 8s
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