C# 0 The Complete Reference

double

. Because 

result

 has a 

floating-point type, it can hold values such as 122.23, 0.034, or –19.0.

To better understand the difference between 

int

 and 

double

, try the following program:

/*

   This program illustrates the differences

   between int and double.

*/

using System;

class Example3 {

  static void Main() {

    int ivar;     // this declares an int variable

    double dvar;  // this declares a floating-point variable

    ivar = 100;   // assign ivar the value 100

    dvar = 100.0; // assign dvar the value 100.0

    Console.WriteLine("Original value of ivar: " + ivar);

    Console.WriteLine("Original value of dvar: " + dvar);

    Console.WriteLine(); // print a blank line

    // Now, divide both by 3.

    ivar = ivar / 3;

    dvar = dvar / 3.0;

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    Console.WriteLine("ivar after division: " + ivar);

    Console.WriteLine("dvar after division: " + dvar);

  }

}

The output from this program is shown here:

Original value of ivar: 100

Original value of dvar: 100

ivar after division: 33

dvar after division: 33.3333333333333

As you can see, when