REFLEX002

: 02 Nov

Beginner

C # is a programming language (♦ see DEF) multiplatform, object oriented, derived from C++ and developed by Microsoft.

Similar to JAVA, it allows you to create websites, Web and PC App., games and DB App.

Code Examples

Let's start with very simple codes. The more you progress, page after page, the more sophisticated the scripts will be. However, you must pass the cape of 30 to 40 pages per level, before moving on to the next step... COPY AND IMMERSE YOURSELF!

C 0001 - Hello World !

Say hello...
Reproduce this code (please do not copy-paste!). Watch out for the indentation !

using System;
namespace Bonjourtoutlemonde
{
  class Program
  {
    static void Main(string[] args)
    {
      Console.WriteLine("Hello World !");    
    }
  }
}

Reproduce this code, choosing one of the compilers below (♦ see DEF) (don't copy-paste! It would be too easy). They have the same function, just pick up one according to your preferences.

When you copy your code, replace the existing code (by default) with your own.

Warning ! For some of these compilers, you might have to choose the programming language yourself, in a specific menu which is offered to you. Of course, don't forget to click on RUN !

Test with ONLINE GDB !

Test with W3School !

Test with Onecompiler !

Test with MyCompiler !

Test with HackerRank Compiler !

Test with Code Collab !

C 0002 - Importance Of Syntax

What is the difference between the two types of displays ?
Reproduce this code (please do not copy-paste!). Watch out for the indentation !

using System;
namespace Helloworld
{
  class Program
  {
    static void Main(string[] args)
    {
      Console.WriteLine("Hello World !");
      Console.WriteLine("I go to the line...");

      Console.Write("Hello World !");
      Console.Write(" I stay on this line...");    
    }
  }
}

Reproduce this code, choosing one of the compilers below (♦ see DEF) (don't copy-paste! It would be too easy). They have the same function, just pick up one according to your preferences.

When you copy your code, replace the existing code (by default) with your own.

Warning ! For some of these compilers, you might have to choose the programming language yourself, in a specific menu which is offered to you. Of course, don't forget to click on RUN !

Test with ONLINE GDB !

Test with W3School !

Test with Onecompiler !

Test with MyCompiler !

Test with HackerRank Compiler !

Test with Code Collab !

C 0003 - Several Types Of Information

Observe the differences...
Reproduce this code (please do not copy-paste!). Watch out for the indentation !

using System;
namespace MyApplication
{
  class Program
  {
    static void Main(string[] args)
    {
      int myNum = 9;               // Integer
      double myDoubleNum = 4.99D;  // Floating point
      char myLetter = 'M';         // Character
      bool myBool = true;          // Boolean
      string myText = "Hello World !";     // String
      Console.WriteLine(myNum);
      Console.WriteLine(myDoubleNum);
      Console.WriteLine(myLetter);
      Console.WriteLine(myBool);
      Console.WriteLine(myText);
    }
  }
}

Reproduce this code, choosing one of the compilers below (♦ see DEF) (don't copy-paste! It would be too easy). They have the same function, just pick up one according to your preferences.

When you copy your code, replace the existing code (by default) with your own.

Warning ! For some of these compilers, you might have to choose the programming language yourself, in a specific menu which is offered to you. Of course, don't forget to click on RUN !

Test with ONLINE GDB !

Test with W3School !

Test with Onecompiler !

Test with MyCompiler !

Test with HackerRank Compiler !

Test with Code Collab !

C 0004 - Declarations And Statements

Fundamental for programming...
Reproduce this code (please do not copy-paste!). Watch out for the indentation !

using System;
namespace MyApplication
{
  class Program
  {
    static void Main(string[] args)
    {
      int x = 48;
      int y = 22;
      if (x > y)
      {
        Console.WriteLine("x is bigger than y");
      }
    }
  }
}

Reproduce this code, choosing one of the compilers below (♦ see DEF) (don't copy-paste! It would be too easy). They have the same function, just pick up one according to your preferences.

When you copy your code, replace the existing code (by default) with your own.

Warning ! For some of these compilers, you might have to choose the programming language yourself, in a specific menu which is offered to you. Of course, don't forget to click on RUN !