Csharp/C Sharp/Data Types/HEX

The hex dump program

<source lang="csharp"> using System; using System.IO;

 class Class1 {
      public static string PadZero( string s, int len ) {
        string temp = s;
        for ( int i=s.Length; i<len; ++i ){
          temp = "0" + temp;
        } 
        return temp;
      }
      static void Main(string[] args) {
            StreamReader sr = new StreamReader( "test.cs" );
            string line = "";
            int nCounter = 0;
            int nOffset = 0;
            while ( (line = sr.ReadLine()) != null ) {
                for ( int i=0; i<line.Length; ++i ) {
                   int c = (int)line[i];
                   string fmt = String.Format("{0:x}", c);
           
                   if ( fmt.Length == 1 )
                    fmt = PadZero(fmt, 2);
           
                   if ( nOffset % 16 == 0 ) {
                    string offsetFmt = nOffset.ToString();
                    Console.Write(PadZero(offsetFmt,5)+": ");
                   }
           
                   Console.Write(fmt + " ");
                   if ( nCounter == 15 ) {
                     Console.Write("\n");
                     nCounter = 0;
                   } else {
                    nCounter ++;
                   } 
                   nOffset ++;
                }
            }
      }
 }

      </source>