C++ Interview Questions and Answers - FAQ

Search This Blog

What is the purpose of separating a class implementation from its interface

on August 15, 2009

Get link
Facebook
X
Pinterest
Email
Other Apps

Encapsulation.

Encapsulation

Get link
Facebook
X
Pinterest
Email
Other Apps

Comments

Top 50 C++ Interview Questions

Basic Concepts What is Visual C++? Explain the purpose and features of Visual C++. What is the difference between C and C++? Discuss key differences such as procedural vs. object-oriented programming. What are the main features of C++? Cover features like classes, inheritance, polymorphism, encapsulation, and templates. Explain the concept of object-oriented programming (OOP). Describe core OOP principles: encapsulation, inheritance, and polymorphism. What are access specifiers in C++? Discuss public , private , and protected access specifiers and their uses. What is a constructor and destructor? Explain the purpose and usage of constructors and destructors in C++. What is a virtual function? Describe the concept of virtual functions and their role in achieving polymorphism. What is the purpose of the static keyword in C++? Explain the different uses of static for variables and functions. How does C++ handle memory management? Discuss the use of new , delete , and smart pointe...

More C++ Questions and answers

More C++ Questions and answers Why would you use: public/private/protected inheritance? Why does the language not define static virtual functions Can you make a destructor virtual? Why would you want a virtual destructor? How would you print the first 10 characters of a string? When would you use private inheritance? How and why would you implement a ' When would you use a reference? Why do you want to have virtual member functions? How was "it" done before vmf's came into existence? What was wrong with it? Why is "protected" as bad as "public"? Give one example use of a static member. Why did new (a new expression) have to be a language-level construct while malloc could be a library function? What are the advantages and disadvantages of templates over plain old inheritance and heterogenous containers? What are the problems with a tree-style hierarchy? Why is iostream better than stdio? (There are umpteen reasons, I'm just talking about the t...

Smart Pointers

Smart Pointers - What, Why, Which? What are they? Smart pointers are objects that look and feel like pointers, but are smarter. What does this mean? To look and feel like pointers, smart pointers need to have the same interface that pointers do: they need to support pointer operations like dereferencing (operator *) and indirection (operator ->). An object that looks and feels like something else is called a proxy object, or just proxy. The proxy pattern and its many uses are described in the books Design Patterns and Pattern Oriented Software Architecture . To be smarter than regular pointers, smart pointers need to do things that regular pointers don't. What could these things be? Probably the most common bugs in C++ (and C) are related to pointers and memory management: dangling pointers, memory leaks, allocation failures and other joys. Having a smart pointer take care of these things can save a lot of aspirin... The simplest example of a smart pointer is aut...

Powered by Blogger