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

C++ General Interview Questions

Questions Answers Views Company eMail

Find the second maximum in an array?

HCL,

12 25609

"How will you merge these two arrays? Write the program Array: A 1 18 22 43 Array: B 3 4 6 20 34 46 55 Output Array: C 1 3 4 6 18 20 22 34 43 46 55"

College School Exams Tests, HCL,

9 24055

What is Object Oriented programming.what is the difference between C++ and C?

Infosys,

8 25194

Memory is not a constraint. In a single iteration(NOTE: you can't go back), how will you find out the 10th last node/item in a linked list.

BNB, FDS, Goldman Sachs, Nagarro,

16 27347

how to swap two numbers with out using temp variable

Global eProcure, TCS,

12 20640

Can we use resume in error handling i.e. in the catch block

Infosys,

5 10191

this is to swap to strings....but in output the whole strings are swapped leaving first as it is...why it is so #include int main() { char a[]="ajeet"; char b[]="singh"; long x=*a; long y=*b; cout< 1 4561

how to swap two strings without using any third variable ?

11 39119

if i want cin 12345678910 and cout abcdefghij. so how can i create the program?. example : if i key in 8910 so the answer is ghij.

3 5950

Write a program that read 2o numbers in and array and output the second largest number. Can anybody help??

7 10656

In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest.

GE,

5 8316

Consider a c++ template funtion template T& Add(T a, T b){return a+b ;} if this function is called as T c = Add("SAM", "SUNG"); what will happen? What is the problem in the template declaration/ How to solve the problem.

LG, Samsung,

7 17128

Disadvantages of c++

HCL,

8 18416

what is the size of this class class size { public: char data1; double d; int data2; char data3; double data4; short data5; }; please explain the padding for these double variables.

9 11262

Please post the model question paper of hal?

2 4754

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Un-Answered Questions { C++ General }

How can you quickly find the number of elements stored in a static array?

1064

What is the advantage of an external iterator.

991

Can you please explain the difference between using macro and inline functions?

1016

Will the following program execute?

998

Can a constructor return a value?

1175

Explain dangling pointer.

1081

What is null pointer and void pointer?

1018

Do you know what are static and dynamic type checking?

1027

Do vectors start at 0 c++?

991

What is this weird colon-member (" : ") syntax in the constructor?

983

Explain the advantages of using friend classes.

1105

Why do we use constructor?

1011

Explain how an exception handler is defined and invoked in a Program.

1135

What is a node class in c++?

1037

Can I learn c++ without learning c?

964

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