A simple example that uses a parameter

/*
C#: The Complete Reference
by Herbert Schildt

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// A simple example that uses a parameter.

using System;

class ChkNum {
// Return true if x is prime.
public bool isPrime(int x) {
for(int i=2; i < x/2 + 1; i++) if((x %i) == 0) return false; return true; } } public class ParmDemo { public static void Main() { ChkNum ob = new ChkNum(); for(int i=1; i < 10; i++) if(ob.isPrime(i)) Console.WriteLine(i + " is prime."); else Console.WriteLine(i + " is not prime."); } } [/csharp]