Basic concepts of C# ,IL code and JIT

  18th Day

Hey Guys, I hope that you are Enjoying with my blogs and Today's we will study about .NET Platform with "C#" Language basic concept.

• .NET is a free, cross-platform, open source developer platform for building many different types of applications.
• .NET Core is a cross-platform .NET implementation for websites, servers, and console apps on Windows, Linux, and macOS.
• With .NET, you can use multiple languages, editors, and libraries to build for web, mobile, desktop, games, and IoT.

• whatever code write in C# ,It compiles in intermediate language code and by  just in time compiler(JIT) make IL code to machine code. For Example
  
  
  

• suppose if want to see IL code then build this program.
• If we build this code then its IL code will show in bin folder
• Go to solution explorer -> right click->open folder in file Explorer->binary folder(bin)->debug->
  
  
  
  
  
• Many code folders has like dynamic link library(dll) Console application only for start to dll not run directly that's why application console first link and then run dll.
• when we double click on exe then JIT start in background.
• And JIT compile to single-single line make it machine code
• Intermediate language disassembler (ILDSM) for showing purpose we will to go on visual command prompt
• Like visual studio developer command prompt go and open then new dialogue box will open  drag and drop click on console application
• Expand -> static void main then IL code will be show
• so we can say that C# doesn't compile directly into machine code its first  compile into intermediate language then this IL code later compile by JIT into Binary code.
• For Example: Flow of C# code
  
  
  
•  C# is a strongly typed language it means that language is one in which variables are bound to specific data types, and will result in type errors like.  
         int i = 0;

              i++;

              i="Raushan"
        It will show error can not implicitly convert type string to int.

• A strongly-typed language in which variables are bound to specific data types, and will result in type errors if types do not match up as expected in the expression — regardless of when type checking occurs.

• C# Data Types: It is strongly data type language.

  

  
  
• if condition : It is used where condition is true. otherwise else condition.

                     Input:

                     Output:     After insert data

                                       Without insert data 

• Convert one data type to another:

                                    Input:

                                 

                                   Output: 
                                   

                          Must refer this videos for more details:

                

                                      Thank You...!