System.Char.Equals C# (CSharp) Method

        public bool Equals(char obj)
        {
            return Equals((object)obj);
        }

 /// <summary><c>isDigit</c>
 /// Checks the given char if it's a digit.</summary>
 /// <param name="val">Any char</param>
 /// <returns type="char">is char digit ('0'-'9')</returns>
 private bool isDigit(Char val)
 {
     return val.Equals('1') || val.Equals('2') ||
         val.Equals('3') || val.Equals('4') ||
         val.Equals('5') || val.Equals('6') ||
         val.Equals('7') || val.Equals('8') ||
         val.Equals('9') || val.Equals('0');
 }