Questions on OOP
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The company of a friend of mine is looking for a C/C++ programmer and he’s trying to collect some C/C++ questions for the interview. In addition to simple, plain C questions (he already has plenty of them), he is interested in questions dealing with basic OOP concepts Any suggestion? Thanks :-)
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Ooh, fantastic ad. David Parrott
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Juan Carlos Cobas wrote: Any suggestion? Well, as for C++ questions, you might ask about the 4 C++ casts, single/multiple/virtual and public/protected/private inheritance, probably some stuff about the standard library. As for OO and related stuff, talk about Design Patterns, UML, ask the candidates about has-a and is-a and how you might implement them (Liskov Substitution Principle? I think that's what it's called), encapsulation, information hiding, object heirarchies, generic/template programming (orthoganal to OO). Note that not knowing some of this stuff isn't fatal - as long as the candidate shows an interest in learning it. -- Ian Darling "The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky
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Whats sad is I translated all the ASCII codes from memory :-D:omg::sigh: Roger Allen - Sonork 100.10016 If your dead and reading this, then you have no life!
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That would have been much cooler in hex :-)
char msg[] = {0x4E, 0x6F, 0x77, 0x20, 0x48, 0x69, 0x72, 0x69, 0x6E, 0x67, 0x00};-- Ian Darling "The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky -
Same here, and I have maked a living from programming C++ in quite a few years now... - Anders Money talks, but all mine ever says is "Goodbye!" My Photos[^] nsms@spyf.dk <- Spam Collecting ;)
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Juan Carlos Cobas wrote: Any suggestion? Well, as for C++ questions, you might ask about the 4 C++ casts, single/multiple/virtual and public/protected/private inheritance, probably some stuff about the standard library. As for OO and related stuff, talk about Design Patterns, UML, ask the candidates about has-a and is-a and how you might implement them (Liskov Substitution Principle? I think that's what it's called), encapsulation, information hiding, object heirarchies, generic/template programming (orthoganal to OO). Note that not knowing some of this stuff isn't fatal - as long as the candidate shows an interest in learning it. -- Ian Darling "The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky
Thanks Ian, though I'm afraid they'll never find a programmer that will be able to answer those OOP questions :-)
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Thanks Ian, though I'm afraid they'll never find a programmer that will be able to answer those OOP questions :-)
Juan Carlos Cobas wrote: Thanks Ian, though I'm afraid they'll never find a programmer that will be able to answer those OOP questions Well like I said, they don't have to know the specifics, just be interested in knowing about them. I think that's really the key thing. Get someone who: a) Is keen to learn stuff. b) Looks like they can get stuff done. The questions are window dressing for determining these two points. -- Ian Darling "The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky
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Whats sad is I translated all the ASCII codes from memory :-D:omg::sigh: Roger Allen - Sonork 100.10016 If your dead and reading this, then you have no life!
So, did you get the job then? --Colin Mackay--
"In the confrontation between the stream and the rock, the stream always wins - not through strength but perseverance." (H. Jackson Brown) Enumerators in .NET: See how to customise foreach loops with C#
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Thanks Ian, though I'm afraid they'll never find a programmer that will be able to answer those OOP questions :-)
Juan Carlos Cobas wrote: though I'm afraid they'll never find a programmer that will be able to answer those OOP questions You're kidding! Those were basic OOP subjects! :omg: Marc Latest AAL Article My blog Join my forum!
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The company of a friend of mine is looking for a C/C++ programmer and he’s trying to collect some C/C++ questions for the interview. In addition to simple, plain C questions (he already has plenty of them), he is interested in questions dealing with basic OOP concepts Any suggestion? Thanks :-)
:) Better take a look at this http://www.joelonsoftware.com/articles/fog0000000073.html[^] ______________________________ Java: The living proof Moore's law won't solve all your problems
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So, did you get the job then? --Colin Mackay--
"In the confrontation between the stream and the rock, the stream always wins - not through strength but perseverance." (H. Jackson Brown) Enumerators in .NET: See how to customise foreach loops with C#
I didn't realise I was applying for a job.... All the other questions look reasonable. I need to go look up all the C++ casts to be absolutley sure I would not suck if I did do the interview. The rest seemed OK. Roger Allen - Sonork 100.10016 If your dead and reading this, then you have no life!
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Thanks Ian, though I'm afraid they'll never find a programmer that will be able to answer those OOP questions :-)
Those are questions I would expect a medium level developer skilled in OOP to know fairly well or at least enough to talk about them a little. Daniel
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Whats sad is I translated all the ASCII codes from memory :-D:omg::sigh: Roger Allen - Sonork 100.10016 If your dead and reading this, then you have no life!
At least you know that you're a geek! :laugh: :rolleyes:
Who is 'General Failure'? And why is he reading my harddisk?!?
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Juan Carlos Cobas wrote: though I'm afraid they'll never find a programmer that will be able to answer those OOP questions You're kidding! Those were basic OOP subjects! :omg: Marc Latest AAL Article My blog Join my forum!
Marc Clifton wrote: You're kidding! Those were basic OOP subjects! Really? I would not be able to answar a lot of them... Are you by that saying that I'm a bad programmer, and that I know nothing about OOP? - Anders Money talks, but all mine ever says is "Goodbye!" My Photos[^] nsms@spyf.dk <- Spam Collecting ;)
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:) Better take a look at this http://www.joelonsoftware.com/articles/fog0000000073.html[^] ______________________________ Java: The living proof Moore's law won't solve all your problems
An illuminating post from Amanjit Gill . . . I figure I must be a half-wit who gets things halfway done, and while it has not been an obstacle on the job, it has been an impediment to getting one. Guerrilla interview techniques should probably be left to gang warfare. I think the original post on OOP techniques and interview questions, as well as the original suggestion have been misunderstood. The request was for areas of questionning that might be helpful in discovering potential in candidates, and the helpful reply was a set of topics. Posing a whole topic as a question would probably not yield meaningful results for two reasons: (1) It is not difficult to learn the definitions to these terms, but as the Amanjit Gill points out to us, asking for definitions won't find you a candidate who gets things done; (2) While rote recitation of canned definitions may indicate an interest, a programmers rendition of what a concept represents in terms of the way s/he has used it will be rambling and vague -- you wind up eliminating the very people whom you wish to choose. To make these helpful suggestions into solutions (a problem-solving exercise in itself), it would be good to take each topic supplied and create a question from it that relates directly to the job (or kind of job) that needs to be done. This may not be a brilliant suggestion, but at least I have summarized all the suggestions into an actionable synthesis of the solution . . . Ernie ---------------------------------- Ernest Clayton Cordell, II E-mail: ernie_cordell@hotmail.com Web page redirect at: http://come.to/ernie Resumee at http://www.perfectagent.com/seeme/ec77394
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Those are questions I would expect a medium level developer skilled in OOP to know fairly well or at least enough to talk about them a little. Daniel
Daniel Wilson wrote: Those are questions I would expect a medium level developer skilled in OOP to know fairly well or at least enough to talk about them a little. Yes, the stuff about templates, private/public/protected stuff and virtual and abstract functions... But... not always the design patterns and uml stuff, i know several really good programmers that know nothing about that part... - Anders Money talks, but all mine ever says is "Goodbye!" My Photos[^] nsms@spyf.dk <- Spam Collecting ;)
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Marc Clifton wrote: You're kidding! Those were basic OOP subjects! Really? I would not be able to answar a lot of them... Are you by that saying that I'm a bad programmer, and that I know nothing about OOP? - Anders Money talks, but all mine ever says is "Goodbye!" My Photos[^] nsms@spyf.dk <- Spam Collecting ;)
UML you can throw out the window, IMHO. It's big, bloated, and to get real functionality, like reverse engineering, you have to pay big bucks. I think there's a couple good freeware exceptions, however. As for design patterns, you probably already use them. The biggest thing about DP's is that it formalizes certain common OO architectures and gives them nerdy sounding names so that geeks can talk and sound like they're getting something done. Marc Latest AAL Article My blog Join my forum!
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Juan Carlos Cobas wrote: Thanks Ian, though I'm afraid they'll never find a programmer that will be able to answer those OOP questions Well like I said, they don't have to know the specifics, just be interested in knowing about them. I think that's really the key thing. Get someone who: a) Is keen to learn stuff. b) Looks like they can get stuff done. The questions are window dressing for determining these two points. -- Ian Darling "The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky
"Can do, will do" rather than "Yeah, sure" ? The tigress is here :-D
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Juan Carlos Cobas wrote: Any suggestion? Well, as for C++ questions, you might ask about the 4 C++ casts, single/multiple/virtual and public/protected/private inheritance, probably some stuff about the standard library. As for OO and related stuff, talk about Design Patterns, UML, ask the candidates about has-a and is-a and how you might implement them (Liskov Substitution Principle? I think that's what it's called), encapsulation, information hiding, object heirarchies, generic/template programming (orthoganal to OO). Note that not knowing some of this stuff isn't fatal - as long as the candidate shows an interest in learning it. -- Ian Darling "The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky
