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

tell about sorted linked list

1 4165

You have to take 2 arrays of length 10. Input the values of array 1 from the user. Then copy the values of array 1 to array 2 in ascending order For example if user enters 9, 5, 6, 8, 1, 0, 2, 7, 4, 3 then copy the smallest element i.e. 0 first followed by 1, 2 and so

1 3977

what is oppes

2 5197

I am DeePu sotware engineer working with EMC corporation ,recently I had attended mcafee interview . Their questions were at heights of stupidity , I don't know what they want , I am a developer with 4 year experienced .I am listing the questions asked 1:What is the flag in g++ to avoid structure padding 2:In wht order parameters are passed to stack 3:How you will edit code segment of an exe

1 7306

what is the difference between class to class type conversion and copy constructor ?

2 6293

class A { public: void f(); protected: A() {} A(const A&){} }; Examine the class declaration shown above. Why are the default and copy constructors declared as protected? 1. To ensure that A cannot be created via new by a more derived class 2. To ensure that A cannot be copied 3. To ensure that A cannot be used as a base class except when public inheritance has been used 4. To ensure that A cannot be created/copied outside the inheritance chain 5. To ensure that A cannot be instantiated as a static variable

1 8128

Write 7 differences between "Public" function and "Private" function?

IBM, Wipro,

2 17006

what do you mean by static member variable?

2 6368

What is a unary operator?

5 8912

Conversion from a basic type to a class type may be achieved using______________

HCL,

5 22075

A file pointer always contains the __________ of the file

5 12362

difine hierarchical inheritance.

ASD Lab, TCS,

9 28542

what is use to destroy an object? illustrate.

TCS,

5 8487

What is name mangling?

3 7014

What is dangling pointers?and what is memory leak?

5 43472

Un-Answered Questions { C++ }

class CTest { public: void someMethod() { int nCount = 0; cout << "This is some method --> " << nCount; } }; int main() { CTest *pctest; pctest->someMethod(); return 0; } It will executes the someMethod() and displays the value too. how is it possible with our creating memory for the class . i think iam not creating object for the class. Thanks in Advance... Prakash

2351

What is const pointer and const reference?

1251

What is inheritance in oop?

1099

What is a volatile variable in c++?

1593

Why c++ is called oop?

1182

what is scupper?

2484

What is a pointer how and when is it used?

1155

What's the order in which the objects in an array are destructed?

1476

What is an interface in oop?

1095

What is algorithm in c++ programming?

1210

What are the advantages of c++? Explain

1124

What is c++ coding?

1289

What is the use of 'this' pointer?

1310

Explain bubble sorting.

1148

What is the real life example of polymorphism?

1246

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