Developers & Programmers Interview

C++ Question(s) & Actual Evaluation

* Please note that the following answer(s) are just sample answers from one of our candidates. It doesn't mean that it's the correct or wrong answer.
Please refer to the evaluation for more insight.

Classification: Developers & Programmers

Topic(s): C++

Interview Question:

Can you explain the difference between C++ and C? What are some of the features that C++ offers that C does not?

Candidate's Answer:

C and C for primarily in their programs paradigm C introduce object oriented code on ops concepts templates operator over adding and exception handling making it more powerful and flexible while C focus on procedural programming c combines procedural and oops approach

Evaluation:

Your answer touches on important differences between C and C++, but it could be clearer and more structured. Here’s a breakdown of your response and how to improve it:

1. Correctness: You correctly highlighted that C++ introduces object-oriented programming (OOP) concepts, which are not present in C. However, terms like "operator over adding" seem to be a typo or miscommunication—it should be "operator overloading."

2. Concepts Explanation: You mentioned several key features of C++, but you could elaborate on them a bit more. For instance:
- OOP: C++ supports encapsulation, inheritance, and polymorphism, enabling developers to create modular and reusable code.
- Templates: C++ allows for generic programming, which lets you write flexible and type-safe code.
- Exception Handling: C++ supports try-catch blocks to manage errors gracefully, which is not a feature in C.

3. Structure: Your answer could be more organized. Start by clearly stating that C is primarily procedural while C++ combines procedural and object-oriented approaches. Then, list specific features of C++ that demonstrate its enhanced capabilities.

4. Comparative Analysis: Instead of simply stating the features, you could provide a brief comparison. For example, explain how code reusability in C++ via classes contrasts with the more linear and less modular approach of C.

Overall, your answer is on the right track, but clarity and detail are needed for impact.

Rating: 3/5

Improved Answer:
C is a procedural programming language, while C++ incorporates both procedural and object-oriented paradigms. C++ offers several enhancements, including:
- Object-Oriented Programming: C++ supports encapsulation, inheritance, and polymorphism, allowing for more modular and reusable code.
- Templates: This feature enables generic programming, making it easier to create functions and classes that work with any data type.
- Operator Overloading: C++ allows you to redefine the functionality of operators (like +, -, etc.) for user-defined types.
- Exception Handling: C++ provides structured error handling through try-catch blocks, improving program robustness.
These features make C++ more powerful and flexible than C, particularly for larger, more complex software projects.

Create your own personalized full interview in C++ now