public boolean numCheck(String input, int number)
{
    if(number > input.length())
    {
        // handle the case where the input String length is shorter than the number param
        return false;
    }
    // have to subtract one off the number as charAt is indexed starting at 0
    if(Character.isDigit(input.charAt(number - 1))
    {
        return true;
    }
    return false;
}