Which of the following statements is correct about the C#.NET program given below if a value "ABCD" is input to it?

 using System;
 namespace FresherGateConsoleApplication
  {     class MyProgram    
        {       
            static void Main(string[] args)      
            {             
               int index;            
               int vat = 88;    
               int[] a = new int(5];        
               try         
               {             
                  Console.Write("Enter a number: ");                 
                  index = Convert.Toint32(Console.ReadLine());                 
                  a[index] = val;       
               }       
               catch(Exception e)     
               {              
                  Console.Write("Exception occurred");               
               }        
               Console.Write("Remaining program");   
           }   
       } 
   }