Random Number

Berikut contoh kode program untuk mengenerate dan menyimpan hasil generate tersebut ke dalam file textNormal 0 MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";}

using System;

using System.Collections;

using System.Collections.Generic;

using System.Text;

using System.IO;

namespace GeneratePass

{

    class Program

    {

        static void Main(string[] args)

        {

            StringBuilder sb = new StringBuilder();

            string path = "D:\\Number.txt";

            ArrayList myArrayList = new ArrayList();

           

            for (int i = 0; i <= 100000; i++)

            {

                string password = CreateRandomPassword(4);

                if (!myArrayList.Contains(password))

                {

                    myArrayList.Add(password);

                }

            }

            foreach(string pass in myArrayList )

            {

                sb.AppendLine(pass);

            }

           

            File.AppendAllText(path, sb.ToString());

        }

        private static string CreateRandomPassword(int passwordLength)

        {

            string allowedChars = "0123456789";

            char[] chars = new char[passwordLength];

            Random rd = new Random();

            for (int x = 0; x < passwordLength; x++)

            {

                chars[x] = allowedChars[rd.Next(0, allowedChars.Length)];

            }

            return new string(chars);

        }

    }

}

Sumber: http://netindonesia.net/blogs/dedirahmans/archive/2010/06/10/generate-random-number-dan-menyimpannya-ke-text-file.aspx