Computer Science Mock Interview
Master 25 Computer Science interview questions covering algorithms, data structures, and system design.
Question 17 of 25
Please discuss default constructors and conversion constructors.
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
This is a technical question which requires that you talk about two tools used in your profession. Technical questions are best answered directly and succinctly. You should be prepared for follow-up questions. The best way to prepare for an interview that involves technical questions is to review the terms, processes, and operations used in your profession before the interview. It is also good to research the company to understand the technology that it uses to be prepared to answer questions about it.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"A default constructor will either have no arguments or, if it does have arguments, they will be the default values. On the other hand, a conversion constructor can accept an argument that is different from the default. It uses the argument to create conversion rules for a class."
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Anonymous Answer
A default constructor can have no arguments or arguments that are set to default values. Conversion constructors are when the arguments can be different from the default ones.
Stephanie's Feedback
This is a great start, but I suggest providing a few additional details here to beef up your response.
Anonymous Answer
A default constructor is one that has either default arguments or no arguments whereas a conversion constructor is accepting of an argument that’s different from the default arguments.
Marcie's Feedback
Awesome! You clearly understand both of these concepts. Do you have any real-life examples you can also talk about here? Any experience in this area?
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