// Fig. 8.23: InitArray.cs
// Using command-line arguments to initialize an array.
using System;

public class InitArray
{
   public static void Main( string[] args )
   {
      // check number of command-line arguments
      if ( args.Length != 3 )
         Console.WriteLine(
            "Error: Please re-enter the entire command, including\n" +
            "an array size, initial value and increment." );
      else
      {
         // get array size from first command-line argument
         int arrayLength = Convert.ToInt32( args[ 0 ] );
         int[] array = new int[ arrayLength ]; // create array

         // get initial value and increment from command-line argument
         int initialValue = Convert.ToInt32( args[ 1 ] );
         int increment = Convert.ToInt32( args[ 2 ] );

         // calculate value for each array element
         for ( int counter = 0; counter < array.Length; counter++ )
            array[ counter ] = initialValue + increment * counter;

         Console.WriteLine( "{0}{1,8}", "Index", "Value" );

         // display array index and value
         for ( int counter = 0; counter < array.Length; counter++ )
            Console.WriteLine( "{0,5}{1,8}", counter, array[ counter ] );
      } // end else
   } // end Main
} // end class InitArray


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