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 program to calculate the following i want a c++program for this condition 1+4+9+16+….+100 Like this (1^2+2^2) Hint use function pow(a,b)

HTC, TCS,

4 18873

what are difference between c and c++?

Accenture,

9 12300

how to access grid view row?

2242

how to create window program in c++.please explain.

Microsoft,

1 6059

founder of c++

Microtek, TCS, TeleCommand,

7 12900

How the memory management in vectors are being done. What happens when the heap memory is full, and how do you handle it ?

Yahoo,

2316

What is the best sorting algorithm, when there is a large amount of data, that cannot be fit in the main memory. ?

Yahoo,

1 6901

How do you initialize a class member, class x { const int i; };

emc2,

8 10760

advantages and disadvantages of using Borland C++ / version 5.

1 9234

Read the following program carefully and write the output of the program. Explain each line of code according to given numbering. #include #include #include #include 1……………… int main (void) { pid_t pid; 2………………………… pid = fork(); 3…………………………. if (pid > 0) { int i; 4………………………… for (i = 0; i < 5; i++) { 5………………… …………… printf(" I AM VU : %d\n", i); 6………………… …………… sleep(1); } exit(0); } 7………………… ……… else if (pid == 0) { int j; for (j = 0; j < 5; j++) { 8……………………………… printf(" I have no child: %d\n", j); sleep(1); } _exit(0); } else { 9………………………………fprintf(stderr, "can't fork, error %d\n", errno); 10……………… … ………… exit (EXIT_FAILURE); } }

1 4887

write a corrected statement so that the instruction will work properly. if (4 < x < 11) y = 2 * x;

2009

write a corrected statement in c++ so that the statement will work properly. x = y = z + 3a;

1901

Write a corrected statement in c++ so that the statement will work properly. if (4 < x < 11) y=2*x;

2017

Write a corrected statement in c++ so that the statement will work properly. if (x > 5); y = 2*x; else y += 3+x;

1 3051

Write a corrected statement in c++ so that the statement will work properly. if (x = y) x = 2*z;

2 4173

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Un-Answered Questions { C++ General }

What is prototype in c++ with example?

1154

What is difference between n and endl in c++?

1096

How a new element can be added or pushed in a stack?

1022

What is the use of pointer in c++ with example?

1048

What is the standard template library (stl)?

1791

Explain selection sorting?

1090

Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

2574

Can I learn c++ without c?

1149

How long it will take to learn c++?

1047

How a pointer differs from a reference?

1349

Write a program in c++ to print the numbers from n to n2 except 5 and its multiples

2491

Why is c++ still used?

1091

Explain the difference between c & c++?

1099

What is a forward referencing and when should it be used?

1166

What is difference between malloc()/free() and new/delete?

1172

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