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

What is a pure virtual function? Why is it represented as = 0...how is the internal implementation for the same

CTS,

3 8341

What are smart pointer? Whats its use?

CTS,

1 5654

What are function poinetrs? where are they used?

CTS,

1 4491

How many pointers are required to reverse a link list?

CTS,

5 11155

How many types of casting are there in C++? When is a dynamic cast,static_cast,reinterpret cast used?

CTS,

2 9326

Write a program to swap 2 chars without using a third varable? char *s = "A"; char *p = "B";

CTS,

7 24829

What are Binay tress and B trees? Diff between them?

CTS, GATE, Wipro,

8 15131

why we call c++ is object oriented lanaguage

HCL,

7 14204

WILL I GET A guaranteed JOB AFTER DOING bsc()IT) and GNIIT from an NIIT CENTRE??

Biocon, MIT, NIIT,

21 37203

Am studying basic c++ programming, have been given the following assignment. Design a linear program to calculate the maximum stress a material can withstand given a force and a diameter of a circle. To find the required area pi should be defined. Have most of the program sorted out but am at a loss as to how to show the calculations required. Can anyone help?

2194

Explain when u will use Observer pattern and how u will implement in c++ .

1 4642

What is the difference between static link library and dynamic link library?

Tech Mahindra,

7 21061

In multilevel inheritance constructors will be executed from the .... class to ... class

ABCO, TCS,

2 15731

reading material is provided 3 books for c++ if u need more do let me know thnx i hve lots of material do let me know if u want it

2 4753

what is template and type convertion

TATA,

2456

Un-Answered Questions { C++ }

Can the operator == be overloaded for comparing two arrays consisting of characters by using string comparison?

1081

Write a program which is required to process the time of a clock in hours and minutes, entered from the keyboard. With this program, there are two requirements for any data entered by a user: 1. The data must be of the correct type (in this case, two ints). 2. The data must be in the correct range: this means that, for the minutes, negative numbers and any number above 59 must be rejected; for the hours, negative numbers and any number above 23 must be rejected. Output error message for invalid data input. Output the time one and a half hour after the time input. i.e. Hour: 22 Min: 32 One and a half hour after 22:32 is 00:02

1957

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

1029

What does <> mean pseudocode?

1194

What are pass by value and pass by reference?what is the disadvantage of pass by value?

995

Can a constructor be private?

1072

what's the basic's in dot net

2188

What is low level language in simple words?

1032

What is c++ hash?

1106

What is c++ namespace?

1213

What is code reusability in c++?

1246

How static variables and local variablesare similar and dissimilar?

1043

What is meant by a delegate?

1095

What is size of string in c++?

987

. If employee B is the boss of A and C is the boss of B and D is the boss of C and E is the boss of D. Then write a program using the Database such that if an employee name is Asked to Display it also display his bosses with his name. For eg. If C is displayed it should also display D and E with C?

3282

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