Master 25 Computer Science interview questions covering algorithms, data structures, and system design.
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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.
The terminology used in the computer science profession can have different meanings depending on the context i which it is used. This question is an example of this. In normal computer language, interface is the connection between the computer hardware and the operator. However, this question asks you to define interface as it is used within the context of a programming language. Knowing these nuances and answering the question appropriately will help demonstrate your qualifications for this position.

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.
"Within the context of Java, interface is a reference type. This is similar to classes that are used in other programming languages. However, the one difference is that within Java, interface also includes abstract methods."

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Anonymous Answer
In Java, an interface is used as a reference type. It is used to allow for the abstraction of a class. Additionally, it provides a level of security for an object, as it only shows the client information that they need to know and can hide the rest.

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Anonymous Answer
In Java, an interface is a reference type with abstract methods. It works similarly to classes in Python and other programming languages.
Marcie's Feedback
Nice! Do you have experience using this type of interface? If so, be sure to give details about that so the interviewer knows you're competent in this area.
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Written by William Swansen
25 Questions & Answers • Computer Science

By William

By William