Beispiel #1
0
        public static bool TryParse(string courseCodeString, out CourseCode courseCode)
        {
            courseCode = null;
            if (string.IsNullOrWhiteSpace(courseCodeString) || courseCodeString.Length != 8)
            {
                return(false);
            }

            string subjectString = courseCodeString.Substring(0, 4);

            ESubject subject;

            if (!Enum.TryParse(subjectString, out subject))
            {
                return(false);
            }

            string numberString = courseCodeString.Substring(4);

            ushort number;

            if (!ushort.TryParse(numberString, out number))
            {
                return(false);
            }

            courseCode = new CourseCode(subject, number);
            return(true);
        }
        static void Main(string[] args)
        {
            CourseCode courseCode1 = new CourseCode(ESubject.COMP, 3200);

            Console.WriteLine($"{courseCode1.Subject} {courseCode1.Number}");

            CourseCode courseCode2 = CourseCode.Parse("MATH1100");

            Console.WriteLine($"{courseCode2.Subject} {courseCode2.Number}");

            CourseCode courseCode3;
            bool       bParsed = CourseCode.TryParse("What is this madness!", out courseCode3);

            Console.WriteLine($"Parsed: {bParsed}");

            CourseCode courseCode4;

            bParsed = CourseCode.TryParse("MATH1100", out courseCode4);

            Console.WriteLine($"Parsed: {bParsed}");
            Console.WriteLine($"{courseCode4.Subject} {courseCode4.Number}");
        }