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 a single instruction that will store an EVEN random integer between 54 and 212 inclusive in the variable myran. (NOTE only generate EVEN random numbers)

2009

Given the following seqment of code containing a group of nested if instructions: y = 9; if ((x==3) || (x == 5)) y++; else if (x == 2) y *= 2; else if (x == ) y-= 7; else y = 8; if the value of x is 4 before the nested IFs are executed, what is the value of y after the nested IFs are executed?

2081

Given the following seqment of code containing a group of nested if instructions: y = 9; if ((x==3) || (x == 5)) y++; else if (x == 2) y *= 2; else if (x == 4 ) y-= 7; else y = 8; Enter a segment of code (without any IF statements) that does exectly the same thing using the switch structure.

1 3805

Given the following function definition: int doit(int &x, int y, int &z) { x = 3*x; y = y + 5; z = x+y; return z - 4; } int a = 5, b = 7, c = 9, d = 11; d = doit(a,b,c);

2 7049

Write a C/C++ program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the maximum number of concurrent threads that the InnoDB plug-in can create

2679

what is ltti

Unisys,

1 6319

In OverLoading concept,Why they are not consider return value and why they are consider only parameters in method? For ex: public int Add(int a,int b){...} public String Add(int a,int b){...}

1 3419

#include void main() { class x { public: int func(int) { cout<<"cool"; return 1; } } }

Infosys,

1 4867

Name a typical usage of polymorphism

3 6001

what is the difference between containership and inheritence?

1 18559

Write a program and call it sortcheck.cpp which receives 10 numbers from input and checks whether these numbers are in ascending order or not. You are not allowed to use arrays. You should not define more than three variables

BirlaSoft, Crayonz,

2 4957

write a c++ program that gives output 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 using looping statement

2 6454

what is virtual function?

3 5723

what i oops concept, how many languages supports oops concept?

Value Labs,

3 7348

Is following functions are said to be overloaded? int add(int a,int b) char *add(int a,int b)

4 6215

Un-Answered Questions { C++ }

Explain encapsulation in C++.

1057

How oops is better than procedural?

1152

Are vectors passed by reference c++?

1057

What does <> mean pseudocode?

1273

Why do we need c++?

1108

Is c++ vector a linked list?

1047

What do you mean by a template?

1119

What is c++ w3school?

1159

Why do we need function?

1106

What are the new features that iso/ansi c++ has added to original c++ specifications?

1217

What are the 2 main types of data structures?

1173

Can I uninstall microsoft c++ redistributable?

1193

How one would use switch in a program?

1120

Explain the difference between using macro and inline functions?

1187

What are 2 ways of exporting a function from a dll?

1282

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