C# Program for Replace the First and Last Letter of a Word

class Program
{
    static void Main(string[] args)
    {
        int i;
        String strMyText = "My Name Is Jithil";
        string[] arr = strMyText.Split(' ');
        foreach(string str in arr)
        {
            int iFirstIndex = str.IndexOf(str[0]);
            int iLastIndex = str.LastIndexOf(str[str.Length - 1]);
            string temp = "";
            for(i = 0; i < str.Length; i++)
            {
                if(str.Length > 2)
                    if(i != iFirstIndex && i != iLastIndex) temp += "*";
                    else temp += str[i];
                else temp += str[i];
            }
            Console.Write(temp + " ");
        }
        Console.ReadLine();
    }
}