shows that using an instance of the System.Int32 stucture is the same as using the int keyword

   
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

//
//  TestInt.cs -- shows that using an instance of the System.Int32 stucture
//  is the same as using the int keyword.
//
//                Compile this program with the following command line:
//                    C:>csc TestInt.cs
//
namespace nsTestInt
{
    using System;
    
    public class TestInt
    {
        static public void Main ()
        {
           System.Int32 x;
           OutInt (out x);
           Console.WriteLine ("The integer is " + x);
           x = 42;
           ShowInt (x);
           ChangeInt (ref x);
           Console.WriteLine ("The integer is " + x);
        }
        static void OutInt (out int val)
        {
            val = 42;
        }
        static void ShowInt (int val)
        {
           Console.WriteLine ("The value passed is " + val.ToString());
        }
        static void ChangeInt (ref System.Int32 val)
        {
            val *= 2;
        }
    }
}

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shows that using an instance of the System.Int32 stucture is the same as using the int keyword : Number « Data Types « C# / C Sharp

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