throwing exception for wrong array length

Question

I'm trying to figure out how I can throw an exception based on the length of an array, but at the same time, be able to return a value if the length is correct

Ex:

 public Complex readInput()
 {
     Complex temp = 0;
     try
     {
          Console.Write("Enter input: ");
          string input = Console.ReadLine();

          String[] cplx= input.Split(' ');
          if (cplx.Length != x)
          {
               throw new IndexOutOfRangeException("INVALID INPUT ENTRY...");
          }

          temp = new Complex(Double.Parse(cplx[0]), Double.Parse(cplx[1]), ...);
     }
     catch (FormatException)
     {
          Console.WriteLine("INVALID INPUT ENTRY...");
     }
     return temp;
 } // end readInput

Ideally, I'd just want the if (opr.Length ...) and IndexOutOfRangeException.. I think I'm using the IndexOutOfRange incorrectly. Is there a way to throw the exception if the array length is not equal to x (can be whatever #), but if it is, return whatever is in it without the try/catch?

Edit: Figured out a part of it: https://stackoverflow.com/a/20580118/2872988

Answer 1

I think you need to throw by like this

 public Complex readInput()
 {
     Complex temp = 0;
     try
     {
          Console.Write("Enter input: ");
          string input = Console.ReadLine();

          String[] cplx= input.Split(' ');
          if (cplx.Length >= x)
          {
               throw new IndexOutOfRangeException("INVALID INPUT ENTRY...");
          }

          temp = new Complex(Double.Parse(cplx[0]), Double.Parse(cplx[1]), ...);
     }
     catch (FormatException)
     {
          Console.WriteLine("INVALID INPUT ENTRY...");
     }
     return temp;
 }