C++ Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

write the programme that convert a interger to biniry number

Amazon,

1 2943

Give two or more real cenario of virtual function and vertual object

TCS,

2327

difference between macro and function?

3 7076

what is the difference between inter class and abstract class...?

2528

String = "C++ is an object oriented programming language.An imp feature of oops is classes and objects".Write a pgm to count the repeated words from this scenario?

HCL,

2386

what are you now programming Languages C+

HCL,

1 4350

Can we remove an element in a single linked list without traversing? Lets suppose the link list is like this 1 2 3 4 5 6 We need to remove 4 from this list (without traversing from beginning) and the final link list shud be 1 2 3 5 6 only thing we know is the pointer to element "4". How can we remove "4" and link "3" to "5"?

CSC,

6 8767

Under what conditions is multiple inheritance not recommended?

1 5595

diff between pointer and reference in c++?

1 5000

How size of a class can be calulated?

2 4855

What is optimization in c++? when using volatile.optimization is not possible..what does this mean?

1 4064

how is returning structurs from functions?Show an eg?

GE,

1 4693

What is the difference in size of this two clasees? Class A { int a; char c; float f; } Class B { float f; char c; int a; }

4 6034

Is there a datatype string in c++?How is the memory allocation?

3 5089

Difference between linked list and array?

3 6536

Un-Answered Questions { C++ }

Explain polymorphism?

1073

What is oops with example?

1044

What is an associative container in c++?

1064

How do I use turbo c++?

988

Is c++ double?

1027

Can user-defined object be declared as static data member of another class?

1021

Explain how the virtual base class is different from the conventional base classes of the opps.

1164

If I is an integer variable, which is faster ++i or i++?

1063

What are references in c++? What is a local reference?

1034

Is it possible to write a c++ template to check for a function's existence?

1026

How can you prevent accessing of the private parts of my class by other programmers (violating encapsulation)?

1075

How the endl and setw manipulator works?

1013

What are the restrictions apply to constructors and destructors?

1079

Explain abstraction.

1107

write a program using c++ to implement single contiguous memory mangement techniques.display the content of the main memory after yhe allocation of jobs and percentage of the wastage of the main memory

3219

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