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USuser44298
 

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    1. PO
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    3. POIs deriving from exception classes the only way to make an object 'throwable' in C#?
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    2. POWhat *specific* software algorithms and design patterns make Google's queries so fast?
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    1. CO@user310291 all can be useful sometimes in software design things can be very subjective & the wrong things can work better then the right things in certain cases. I think the only good design patter really is: Don't follow design pattern specification blindly. Also everyone is entitled to an opinion & I personally find to classify your interfaces as mandatory or not may come in handy.
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      1. POHow to get OPTIONAL interface method implementation in C# like in Objective C 2.0?
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    2. COit's likely to AddCourse() to a teacher with a DateTime - it's more simple for a developer to pickup this approach then having to understand where to add a course & time slot for a teacher which would be located in the ClassSession class?? I'd be disappointed if I enter a new work place and things are not straight forward Teacher.AddCourse() but it's new ClassSession (Teacher,Course,Datetime). Which one you find easier to understand ? So I am after: 1) Unnecessary complexity without theoretical or practical need 2) No extra properties to justify the mapping class. Otherwise it can be done np.
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    3. COLastly: "Simply asserting that writing one more class was too much of a maintenance burden and would not be used isn't any improvement" this isn't at all what I'm trying to put up front, I just point out the obvious - more code more work, it's a side effect. What I do argue is that you don't need an extra class to hold a mapping between a teacher & course. Aslo another big problem that I see here is that I cannot see the practical use of it. You rarely search or display UI screens for "class seesion" rather you display the schedule of a teacher or teachers for course, think about it
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