////예외처리 실습
//using System;

//namespace TryCatch
//{
//    class jpcorp
//    {
//        static void Main(string[] args)
//        {
//            int[] arr = { 1, 2, 3 };

//            try
//            {
//                for (int i = 0; i < 5; i++)
//                {
//                    Console.WriteLine(arr[i]);
//                }
//            }

//            catch (IndexOutOfRangeException e)
//            {
//                Console.WriteLine(“예외가 발생했지롱 : {0}”, e.Message);
//            }

//            Console.WriteLine(“종료”);
//        }
//    }
//}

////예외 던지기
//using System;

//namespace Throw
//{
//    class jpcorp
//    {
//        static void DoSomething(int arg)
//        {
//            if (arg < 10)
//                Console.WriteLine(“arg : {0}”, arg);
//            else
//                throw new Exception(“arg가 10보다 큽니다”);
//        }

//        static void Main(string[] args)
//        {
//            try
//            {
//                DoSomething(1);
//                DoSomething(2);
//                DoSomething(3);
//                DoSomething(4);
//                DoSomething(5);
//                DoSomething(11);
//                DoSomething(31);//예외가 발생해서 실행되지 않음.

//            }

//            catch (Exception e)
//            {
//                Console.WriteLine(e.Message);
//            }
//        }
//    }
//}

////try ~ catch와 finally

//using System;

//namespace Finally
//{
//    class jpcorp
//    {
//        static int Divide(int divisor, int divided)
//        {
//            try
//            {
//                Console.WriteLine(“Divide() 시작”);
//                return divisor / divided;
//            }

//            catch (DivideByZeroException e)
//            {
//                Console.WriteLine(“Divide() 예외발생 :  0으로 나눴네  “);
//                //throw e; //throw를 이용하는 경우가 뭔가?  : 메소드 밖으로 에러 메세지 객체인 e 를 빼기 위해서다.
//                 //즉 0으로 나눴다는 객체를 뺀다.

//                //Console.WriteLine(“Divide() 예외발생 :  0으로 나눴네  : {0}”, e.Message);
//                return 0;
//            }

//            finally
//            {
//                Console.WriteLine(“Divide() 끝”);
//            }
//        }

//        static void Main(string[] args)
//        {
//            //try
//            //{
//            Console.Write(“제수를 입력하세요 “);
//            String temp = Console.ReadLine();
//            int divisor = Convert.ToInt32(temp);

//            Console.Write(“피제수를 입력하세요”);
//            temp = Console.ReadLine();
//            int divided = Convert.ToInt32(temp);

//            Console.WriteLine(” {0}/{1} = {2}”, divisor, divided, Divide(divisor, divided));
//            //}

//            //catch (FormatException e)
//            //{
//            //    Console.WriteLine(“에러 : “, e.Message);
//            //}

//            //catch (DivideByZeroException e)
//            //{
//            //    Console.WriteLine(“에러 : “, e.Message);
//            //}

//            //finally
//            //{
//            //    Console.WriteLine(“프로그램을 종료합니다”);
//            //}
//        }
//    }
//}

////사용자 정의 예외 클래스 만들기

//using System;
//namespace MyException
//{
//    class InvalidArguementException : Exception //이 부분을 어떻게 쓰는지 체크하자.
//    {
//        public InvalidArguementException()
//        {
//        }

//        public InvalidArguementException(string message)
//            : base(message)
//        {
//        }

//        public object Argument
//        {
//            get;
//            set;
//        }
//        public string Range
//        {
//            get;
//            set;
//        }
//    }

//    class MainApp
//    {
//        static uint MergeARGB(uint alpha, uint red, uint green, uint blue)
//        {
//            uint[] args = new uint[] { alpha, red, green, blue };

//            foreach (uint arg in args)
//            {
//                if (arg > 255)
//                    throw new InvalidArguementException()
//                    {
//                        Argument = arg,
//                        Range = “0~255”//왜 쉼표를 쓰는가?
//                    };
//            }

//            return (alpha « 24 & 0xFF000000) |
//                     (red « 16 & 0x00FF0000) |
//                    (green « 8 & 0x0000FF00) |
//                    (blue & 0x000000FF); //이부분 다시 체크하자.
//        }

//        static void Main(string[] args)
//        {
//            try
//            {
//                Console.WriteLine(“0x{0:X}”, MergeARGB(255, 111, 111, 111));
//                Console.WriteLine(“0x{0:X}”, MergeARGB(1, 65, 192, 128));
//                Console.WriteLine(“0x{0:X}”, MergeARGB(0, 255, 255, 300));
//            }

//            catch (InvalidArguementException e)
//            {
//                Console.WriteLine(e.Message);
//                Console.WriteLine(“Argument : {0}, Range:{1}”, e.Argument, e.Range);
//            }
//        }
//    }
//}

//예외 처리 다시 생각해 보기

//using System;
//namespace MainApp
//{
//    class jpcorp
//    {
//        static void Main(string[] args)
//        {
//            try
//            {
//                int a = 1;
//                Console.WriteLine(3 / –a); //여기서 예외 처리가 발생한다
//            }

//            catch (DivideByZeroException e)
//            {
//                Console.WriteLine(e.StackTrace);//stacktrace를 하면 어디서 문제가 발생했는지 찾아준다.
//            }
//        }
//    }
//}