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

How is the using() pattern useful? What is IDisposable? How does it support deterministic finalization?

IntraLogic,

1 14564

Contrast OOP and SOA. What are tenets of each?

Siebel Systems, Wipro,

1 17815

why c++ is called OOPS? waht is inherutance? what is compiler?

5 17108

What normal C constructs work differently in C++?

2 5928

Why and when is a virtual destructor needed?

5 17122

How do I open binary files?

1 5500

Why a "operator=(...)" when there is a copy ctor?

2 6389

How is an Abstract Base Class(ABC) related to an "Abstract Data Type" (ADT)

2 7309

what is the behaviour of C and C++ compiler for the below statements. int *p; p = malloc(100); Is the behaviour same ? or different ?

2 5918

Find out the bug in this code,because of that this code will not compile....... #include #include #include using namespace std; class balance { double cur_bal; char name[80]; public: balance(double n, char *s) { cur_bal = n; strcpy(name, s); } ~balance() { cout << "Destructing "; cout << name << "\n"; } void set(double n, char *s) { cur_bal = n; strcpy(name, s); } void get_bal(double &n, char *s) { n = cur_bal; strcpy(s, name); } }; int main() { balance *p; char s[80]; double n; int i; try { p = new balance [3]; // allocate entire array } catch (bad_alloc xa) { cout << "Allocation Failure\n"; return 1; }

Impetus,

2 6690

what is meaning of isa and hsa

1 7963

What is the output of printf("%d")?

CTS, HCL, Infosys, TCS, Winit, Wipro,

58 77244

What will happen if when say delete this ?

7 16469

What is the Difference between "C structure" and "C++ structure"?

12 51258

What is the Diffrence between a "assignment operator" and a "copy constructor"?

Wipro,

3 8586

Un-Answered Questions { C++ }

how to making game in c++ ?

2791

Explain the virtual inheritance in c++.

1120

When do we run a shell in the unix system? How will you tell which shell you are running?

1032

What is the keyword auto for?

1093

write a code for this:trailer recordId contains a value other than 99, then the file must error with the reason ‘Invalid RECORD_ID’(User Defined Exception).

2210

Write down the equivalent pointer expression for referring the same element a[i][j][k][l]?

1330

write knight tour problem which is present in datastructure

2727

what's the basic's in dot net

2237

How the endl and setw manipulator works?

1064

what are the realtime excercises in C++?

2900

write a C++ program for booking using constructor and destructor.

2595

What things would you remember while making an interface?

1060

How a pointer differs from a reference?

1393

How are virtual functions implemented in c++?

1124

Difference between a copy constructor and an assignment operator.

1052

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