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

C++ General Interview Questions

Questions Answers Views Company eMail

Write a corrected statement in c++ so that the statement will work properly. x =+ 7;

2 3966

Write a corrected statement in c++ so that the statement will work properly. x + y=z;

2 4075

If you had the following code: int x = 23; int *y; y = &x; The instruction y++; does what?

2 4693

Write a single instruction that will find the remainder of integral division when x is divided by y. Have the answer stored in z.

1 3488

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)

1956

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?

2030

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 3720

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 6959

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

2633

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

Infosys,

1 4796

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 4855

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 6351

What do you mean by abstraction. Explain your answer?

5 13116

What is compilation?

Datamatics, TCS,

1 5264

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 total number of disk writes by MySQL.

Webyog,

4 11474

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Un-Answered Questions { C++ General }

What are maps in c++?

967

Can you Mention some Application of C/C++?

1082

What do you mean by early binding?

1068

What is the use of data hiding?

1019

What is the difference between while and do while loop?

1162

Differentiate between realloc() and free().

1056

Explain the use of this pointer?

1156

What is istream and ostream in c++?

1134

How much is c++ certification?

1053

How are virtual functions implemented in c++?

1071

What will happen if a pointer is deleted twice?

1186

What is the best way to take screenshots of a window with c++ in windows?

1056

If all is successful, what should main return a) 0 b) 1 c) void

1016

What is flush programming?

1015

Mention the ways in which parameterized can be invoked. Give an example of each.

1064

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