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C++ Interview Questions
Questions Answers Views Company eMail

Why pure virtual functions are used if they don't have implementation / When does a pure virtual function become useful?

 1 538

What is virtual destructors? Why they are used?

 1 519

What you mean by early binding and late binding? How it is related to dynamic binding?

 1 547

What is meant by reference variable in C++?

 1 542

How to create a reference variable in C++

 1 549

What are the difference between reference variables and pointers in C++?

 1 533

What will the line of code below print out and why?

 323

What is the error in the code below and how should it be corrected?

 302

What will i and j equal after the code below is executed? Explain your answer.

 1 549

What are the different data types present in C++?

 1 732

What are class and object in C++?

 1 651

Compare compile time polymorphism and Runtime polymorphism

 1 493

What do you know about friend class and friend function?

 1 544

Define inline function

 1 554

What is a reference in C++?

 1 629

Un-Answered Questions { C++ }

What is the standard template library (stl)?

621

What are the 4 main oop principles?

680

What is an undefined behavior and sequence points

565

Write is a binary search tree? Write an algo and tell complexity?

590

Write a C++ program without using any loop (if, for, while etc) to print prime numbers from 1 to 100 and 100 to 1 (Do not use 200 print statements!!!)

1637




Are php strings immutable?

560

Is c++ the most powerful language?

562

Describe about storage allocation and scope of global, extern, static, local and register variables?

730

What is polymorphism give a real life example?

557

What is data structure in c++?

652

Is c better than c++?

611

Can we inherit constructor in c++?

584

What is the main purpose of inheritance law?

667

explain the reference variable in c++?

573

INSTANCE FIELDS DECLARED private ARE ACCESSIBLE BY THE METHODS ONLY.CAN WE CHANGE THE private FIELD OF AN OBJECT IN A METHOD OF SOME OTHER OBJECT OF THE SAME CLASS?

1632

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