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  4. Just for fun - what's the output of this?

Just for fun - what's the output of this?

Scheduled Pinned Locked Moved C#
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  • R Rob Philpott

    Le Centriste wrote:

    Nope. This is easy

    Why did you get it wrong then? :)

    Regards, Rob Philpott.

    L Offline
    L Offline
    Le centriste
    wrote on last edited by
    #9

    I got it wrong? Then, why did you accuse me of cheating?

    D 1 Reply Last reply
    0
    • L Le centriste

      So, both me and this guy give the correct answer. You greet him and you accuse me of cheating. You're a plain asshole.

      D Offline
      D Offline
      DominLondon
      wrote on last edited by
      #10

      You both got the answer wrong :) . He was only joking when he asked if you were cheating...

      L 1 Reply Last reply
      0
      • L Le centriste

        I got it wrong? Then, why did you accuse me of cheating?

        D Offline
        D Offline
        DominLondon
        wrote on last edited by
        #11

        Hes playing. But you did get the answer wrong.

        L 1 Reply Last reply
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        • D DominLondon

          You both got the answer wrong :) . He was only joking when he asked if you were cheating...

          L Offline
          L Offline
          Le centriste
          wrote on last edited by
          #12

          He forgot the icon, so I took as a personal attack. ;P

          1 Reply Last reply
          0
          • D DominLondon

            Hes playing. But you did get the answer wrong.

            L Offline
            L Offline
            Le centriste
            wrote on last edited by
            #13

            Yes, I finally ran it. I am surprised that the static constructor is called twice. Probably because it is throwing an exception.

            D 1 Reply Last reply
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            • L Le centriste

              Yes, I finally ran it. I am surprised that the static constructor is called twice. Probably because it is throwing an exception.

              D Offline
              D Offline
              DominLondon
              wrote on last edited by
              #14

              The static constructor is NOT being called twice.

              L 1 Reply Last reply
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              • L Le centriste

                So, both me and this guy give the correct answer. You greet him and you accuse me of cheating. You're a plain asshole.

                R Offline
                R Offline
                Rob Philpott
                wrote on last edited by
                #15

                That's a bit rude isn't it? Not sure I like you. And neither did I accuse you of cheating. Tut.

                Regards, Rob Philpott.

                L 1 Reply Last reply
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                • R Rob Philpott

                  ...if your idea of fun is as warped as mine. No Visual Studio allowed.

                     static void Main(string\[\] args)
                  
                      {
                  
                          try
                  
                          {
                  
                              TestStatic.SaySomething("HI");
                  
                          }
                  
                          catch (Exception error)
                  
                          {
                  
                              Console.WriteLine(error.InnerException.Message);
                  
                          }
                  
                          try
                  
                          {
                  
                              TestStatic.SaySomething("Hi 2");
                  
                          }
                  
                          catch (Exception error)
                  
                          {
                  
                              Console.WriteLine(error.InnerException.Message);
                  
                          }
                  
                          Console.ReadLine();
                  
                      }
                  
                  }
                  
                  
                  
                  public class TestStatic
                  
                  {
                  
                      static TestStatic()
                  
                      {
                  
                          throw new Exception("Afternoon Exception");
                  
                      }
                  
                  
                  
                      public static void SaySomething(string message)
                  
                      {
                  
                          Console.WriteLine(message);
                  
                      }
                  
                  }
                  

                  Regards, Rob Philpott.

                  M Offline
                  M Offline
                  musefan
                  wrote on last edited by
                  #16

                  I didnt think you could compile with a static constructor? I assume i am wrong thou as others have tested? so in which case i would say output is.. HI Hi 2

                  Life goes very fast. Tomorrow, today is already yesterday.

                  R 1 Reply Last reply
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                  • D DominLondon

                    The static constructor is NOT being called twice.

                    L Offline
                    L Offline
                    Le centriste
                    wrote on last edited by
                    #17

                    yeah, you're right. So, when the static constructor first throws an exception, any attempt to use the static methods (or maybe instance methods) rethrows the exception. I never use static constructors, and such behavior does not make me want to them.

                    1 Reply Last reply
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                    • M musefan

                      I didnt think you could compile with a static constructor? I assume i am wrong thou as others have tested? so in which case i would say output is.. HI Hi 2

                      Life goes very fast. Tomorrow, today is already yesterday.

                      R Offline
                      R Offline
                      Rob Philpott
                      wrote on last edited by
                      #18

                      Can't compile with a static constructor?! Not sure they'd be much use in the language if that were the case. Sorry, you're wrong too.

                      Regards, Rob Philpott.

                      M 2 Replies Last reply
                      0
                      • R Rob Philpott

                        ...if your idea of fun is as warped as mine. No Visual Studio allowed.

                           static void Main(string\[\] args)
                        
                            {
                        
                                try
                        
                                {
                        
                                    TestStatic.SaySomething("HI");
                        
                                }
                        
                                catch (Exception error)
                        
                                {
                        
                                    Console.WriteLine(error.InnerException.Message);
                        
                                }
                        
                                try
                        
                                {
                        
                                    TestStatic.SaySomething("Hi 2");
                        
                                }
                        
                                catch (Exception error)
                        
                                {
                        
                                    Console.WriteLine(error.InnerException.Message);
                        
                                }
                        
                                Console.ReadLine();
                        
                            }
                        
                        }
                        
                        
                        
                        public class TestStatic
                        
                        {
                        
                            static TestStatic()
                        
                            {
                        
                                throw new Exception("Afternoon Exception");
                        
                            }
                        
                        
                        
                            public static void SaySomething(string message)
                        
                            {
                        
                                Console.WriteLine(message);
                        
                            }
                        
                        }
                        

                        Regards, Rob Philpott.

                        L Offline
                        L Offline
                        Lost User
                        wrote on last edited by
                        #19

                        Ok, well, you have a static ctor which will throw an exception the first time the type is used, so it would be:

                        Afternoon Exception
                        Hi 2

                        Correct?

                        R 1 Reply Last reply
                        0
                        • L Lost User

                          Ok, well, you have a static ctor which will throw an exception the first time the type is used, so it would be:

                          Afternoon Exception
                          Hi 2

                          Correct?

                          R Offline
                          R Offline
                          Rob Philpott
                          wrote on last edited by
                          #20

                          Nope!

                          Regards, Rob Philpott.

                          L 1 Reply Last reply
                          0
                          • R Rob Philpott

                            That's a bit rude isn't it? Not sure I like you. And neither did I accuse you of cheating. Tut.

                            Regards, Rob Philpott.

                            L Offline
                            L Offline
                            Le centriste
                            wrote on last edited by
                            #21

                            Hmmm I am not sure of this.... Anyway, my apologies if I offended you.

                            R 1 Reply Last reply
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                            • R Rob Philpott

                              Can't compile with a static constructor?! Not sure they'd be much use in the language if that were the case. Sorry, you're wrong too.

                              Regards, Rob Philpott.

                              M Offline
                              M Offline
                              musefan
                              wrote on last edited by
                              #22

                              hmmm... well as the TestStatic class is not static it can have a constructor, i just didnt know it could be static. but either way any static methods (i.e. SaySomething) can be called without the need to create an instance of your class, which you are not doing in your code. So both calls to the SaySomething method should be successful, can you explain why either would fail? i think not.

                              Life goes very fast. Tomorrow, today is already yesterday.

                              L R 2 Replies Last reply
                              0
                              • R Rob Philpott

                                Nope!

                                Regards, Rob Philpott.

                                L Offline
                                L Offline
                                Lost User
                                wrote on last edited by
                                #23

                                Ok, I rethought. The ctor fails, and that is bad. How about

                                Afternoon Exception
                                Afternoon Exception

                                ?

                                R M 2 Replies Last reply
                                0
                                • R Rob Philpott

                                  Can't compile with a static constructor?! Not sure they'd be much use in the language if that were the case. Sorry, you're wrong too.

                                  Regards, Rob Philpott.

                                  M Offline
                                  M Offline
                                  musefan
                                  wrote on last edited by
                                  #24

                                  what about... Afternoon Exception HI Hi 2 edit: no, that wouldnt happen if an exception is thrown when the program runs then surely it would just crash with the unhandled exception in the static constructor, no?

                                  Life goes very fast. Tomorrow, today is already yesterday.

                                  1 Reply Last reply
                                  0
                                  • M musefan

                                    hmmm... well as the TestStatic class is not static it can have a constructor, i just didnt know it could be static. but either way any static methods (i.e. SaySomething) can be called without the need to create an instance of your class, which you are not doing in your code. So both calls to the SaySomething method should be successful, can you explain why either would fail? i think not.

                                    Life goes very fast. Tomorrow, today is already yesterday.

                                    L Offline
                                    L Offline
                                    Le centriste
                                    wrote on last edited by
                                    #25

                                    Any class can have a static constructor, but it is highly recommended to make sure they never throw exceptions.

                                    1 Reply Last reply
                                    0
                                    • L Lost User

                                      Ok, I rethought. The ctor fails, and that is bad. How about

                                      Afternoon Exception
                                      Afternoon Exception

                                      ?

                                      R Offline
                                      R Offline
                                      Rob Philpott
                                      wrote on last edited by
                                      #26

                                      Good man! And we have a winner. Yep, the type initialiser fails both times - in short an exception in a static constructor is very bad news. Well done. :)

                                      Regards, Rob Philpott.

                                      L 1 Reply Last reply
                                      0
                                      • M musefan

                                        hmmm... well as the TestStatic class is not static it can have a constructor, i just didnt know it could be static. but either way any static methods (i.e. SaySomething) can be called without the need to create an instance of your class, which you are not doing in your code. So both calls to the SaySomething method should be successful, can you explain why either would fail? i think not.

                                        Life goes very fast. Tomorrow, today is already yesterday.

                                        R Offline
                                        R Offline
                                        Rob Philpott
                                        wrote on last edited by
                                        #27

                                        musefan wrote:

                                        i think not

                                        Really, what is wrong with you people? I think so as described below.

                                        Regards, Rob Philpott.

                                        1 Reply Last reply
                                        0
                                        • L Le centriste

                                          Hmmm I am not sure of this.... Anyway, my apologies if I offended you.

                                          R Offline
                                          R Offline
                                          Rob Philpott
                                          wrote on last edited by
                                          #28

                                          Not offended at all Sir. :)

                                          Regards, Rob Philpott.

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