/// <summary>
/// This method forms the character aray to print triangle by prompting user for Start and End Characters
/// </summary>
/// <returns>returns a character array from start character to end character</returns>
internal static char[] SetCharacterArrayUsingStartEndCharacters()
{
var startCharacter = GetCharacterInput("\nPlease enter an input start character : ");
var endCharacter = GetCharacterInput("\nPlease enter an input end character : ");
UserInputValidation.ValidateStartAndEndCharacter(startCharacter, endCharacter);
var characterArray = ExtendedUserUtilities.GenerateCharacterArray(startCharacter, endCharacter);
return(characterArray);
}