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

What is conditional Compilation?

emc2, HCL,

3 7169

Precompilation ?

emc2,

1 4803

Difference ways of Polymorphism?

3 6128

Example for 4 pillar of oops like, Inheritance,Poly,Abstraction,Encabsulation ?

3 25828

In multiple inheritance , to create sub class object , is there need to create objects for its superclasses??? in java and c++ both. Actually i have some information that is , all available members from its superclasses , memory created in subclass obj , so no need to create object for its superclasses...??? Thanks in Advance

1 3984

What is the output of the following 3D Array int arr[3][2][2]={1,2,3,4,5,6,7,8,9,10,11,12}; what is the output for arr[2][1][0]?

HCL, Integra, IPMC, ORG,

6 42997

Why static functions always uses static variables?

3 6665

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2087

What are the advantages of C++ programming compared to C programming?

HAL,

2 5988

What is Virtual Keyword?

IBM, NA,

9 12910

Adobe Interview & Adobe Placement Paper

Adobe,

1 11248

what is the difference between linear list linked representaion and linked representation? what is the purpose of representing the linear list in linked represention ? is it not avoiding rules of linear represention?

2355

What is volatile and pragma? When they are used?

1 3746

In which memory a class gets stored(in heap /in stack)? And why??

2 9005

why the argument is passed by reference to a copy constructor?example?

2 6445

Un-Answered Questions { C++ }

Write a recursive program to calculate factorial in c++.

1077

What does obj stand for?

1162

Is empty stack c++?

993

Is there any error below, its a code to delete all entires from a map #include #include iostream.h int main() { int i =0; map TestMap; while(i<3) { TesMap.insert(TestMap::value_type(i,Test)); i++; } typedef map :: iterator mapIter =TestMap.begin(); if(mapIter!=TestMap.end()) { TestMap.erase(mapItrer); ++mapIter; } return 0; }

2387

What is advantage of inheritance?

1172

class type to basic type conversion

2400

Is C++ case sensitive a) False b) Depends on implementation c) True

1073

How is c++ used in the real world?

1034

What is else syntax in c++?

1200

Which is not an object oriented programming language?

983

How do you clear a set in c++?

1075

write a code for this. serial_number contained in the header of the file will be read , if this serial number is less than a previous serial number within a successfully processed file, or is the same as another serial number within a successfully processed file, or if the field contains anything other than 7 digits, then the file must error with the reason ‘Invalid SERIAL_NUMBER’.

2252

What Is A Default Constructor in C++ ?

1062

explain the term 'resource acquisition is initialization'?

942

What is an operator function? Describe the function of an operator function?

1149

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