Use byte to control for loop in CSharp

        //from   w  w w  .  j a  v a2 s .co m
 
using System; 
 
public class MainClass {     
  public static void Main() {    
    byte x; 
    int sum; 
 
    sum = 0; 
    for(x = 1; x <= 100; x++) 
      sum = sum + x; 
 
    Console.WriteLine("Summation of 100 is " + sum); 
  }    
}