Re: Interview Questions
- From: "Check Abdoul" <check abdoul at mvps dot org>
- Date: Sat, 18 Apr 2009 10:31:27 -0400
Apart from these questions I would also prefer the developer has a basic
understanding of design patterns (atleast they should have heard of the
GOF ) and refactoring methods.
Cheers
Check Abdoul
---------------------
"AliR (VC++ MVP)" <AliR@xxxxxxxxxxxxx> wrote in message
news:5qsFl.27102$yr3.26844@xxxxxxxxxxxxxxxxxxxxxxx
Do you guys remember the "MFC interview questions" post a few weeks ago?
Well, I'm trying to hire a Jr. programmer to do some C#/Silverlight work
and also help out with the C++/MFC stuff. Therefore OOP understanding is
the most important part for me. (The rest can be taught)
What do you guys think of these questions? Can you think of some good
questions to judge a persons problem solving skills?
1. What is polymorphism?
2. What is a virtual function, and how is it used?
3. What is a pure virtual function, and why would you use it?
4. When and why would you want to have a virtual destructor?
5. What is the difference between a pointer and a reference? (In
other words: What must you always do to a reference?)
6. What's wrong with the following code sample?
class Sub
{
};
class Super1: public Sub
{
};
class Super2 : public Sub
{
};
class DoesSomething
{
public:
void DoSomething(Super1 *pSuper)
{
}
void DoSomething(Super2 *pSuper)
{
}
};
void main()
{
std::vector<Sub *> SubVector;
SubVector.push_back(new Super1);
SubVector.push_back(new Super2);
std::vector<Sub *>::iterator cur = SubVector.begin();
DoesSomething Something;
while (cur != SubVector.end())
{
Something.DoSomething(*cur);
delete *cur;
}
}
How would you solve this problem?
Thanks
AliR.
.
- References:
- Interview Questions
- From: AliR \(VC++ MVP\)
- Interview Questions
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