Predefined Value Types and Reference Types ?

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• 

  Vulpes13y agoPosted Jun 1, 2013, 6:31 AM

  In this example, a reference to where the string literal, "Programming World", is stored in the 'intern pool' is assigned to the string variable str1.
  
  A copy of this reference is then assigned to the variable str2 - so at that juncture they both refer to the same string literal.
  
  A reference to where the string literal, "Hello World", is stored in the 'intern pool' is then assigned to the string variable str1, overwriting the existing reference.
  
  This doesn't affect what str2 refers to and so, at that juncture, the variables point to different string literals which is then reflected in what gets printed out.
  
  Although strings, which are the only reference type which supports literals, have some strange properties, the above is in fact normal behavior for references types.
  
  If instead of string, you'd have used a simple custom class, the output would have been similar:
  
  

  class MyClass

  {

    public string s {get;set;}

    

    public MyClass(string s)

    {

       this.s = s;

    }

  }

  
  // ...
  
  

        MyClass mc1 = new MyClass("Programming World");

        MyClass mc2 = mc1;

        mc1 = new MyClass("Hello World");

        Console.WriteLine("mc1.s : " + mc1.s);
  

        Console.WriteLine("mc2.s : " + mc2.s);
  
  Output:
  

  
  

  mc1.s : Hello World

  mc2.s : Programming World

  
  

  
  
• MF

  mursaleen fayyaz13y agoPosted Jun 1, 2013, 1:05 AM

  The string Type
  
  
  string str1 = "Programming World";
  string str2 = str1;
  str1 = "Hello World";
  Console.WriteLine("str1 : " + str1);
  Console.WriteLine("str2 : " + str2);
  
  Output:
  
  str1 : Programming World
  str2 : Hello World
  
  
  Guys, Comment on the output and difference from the usual behavior of reference types.
  
• 

  Jignesh Trivedi13y agoPosted May 31, 2013, 12:16 AM

  hi,

  Thanks for sharing
  also refer below link to understand value type and reference type in depth

  http://msdn.microsoft.com/en-us/library/s1ax56ch.aspx
  http://msdn.microsoft.com/en-us/library/490f96s2.aspx

  hope this will help.
• 

  Vulpes13y agoPosted May 30, 2013, 3:18 PM

  If you're asking whether that list of C# aliases for basic types in the .NET framework is complete, then the answer is, yes, it is.