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

Describe private, protected and public?

1054

Explain differences between new() and delete()?

1064

What is c++ namespace?

1158

Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through data [321].

1409

Will the following program execute?

1002

How can you quickly find the number of elements stored in a static array? Why is it difficult to store linked list in an array?

947

Differences between private, protected and public and give examples.

1021

How can you quickly find the number of elements stored in a dynamic array? Why is it difficult to store linked list in an array?

1001

What is wrapper class in c++?

1065

Describe private, protected and public – the differences and give examples.

1139

How do you find out if a linked-list has an end?

1085

What is the output of the following program? Why?

1106

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

1064

What it is and how it might be called (2 methods).

1126

Define a constructor - what it is and how it might be called (2 methods)?

1084

Un-Answered Questions { C++ }

Assume an array of structure is in order by studentID field of the record, where student IDs go from 101 to 500. Write the most efficient pseudocode algorithm you can to find the record with a specific studentID if every single student ID from 101 to 500 is used and the array has 400 elements. Write the most efficient pseudocode algorithm you can to find a record with a studentID near the end of the IDs, say in the range from 450 to 500, if not every single student ID in the range of 101 to 500 is used and the array size is only 300

2185

How does list r; differs from list r();?

1108

Describe private, protected and public – the differences and give examples.

1139

What is the difference between function overloading and operator overloading?

1054

Why do we use setw in c++?

1065

Is java made in c++?

1018

Can an interface inherit a class?

1028

Why can't we have instance(stack) of a class as a member of the same class like eg.Class A{A obj;} as we can have self refential pointer

2108

What is low level language in simple words?

1000

What is multilevel inheritance?

1169

What language does google use?

1104

What is a map in c++?

1121

What is abstraction in oops?

999

Write a program to interchange 2 variables without using the third one.

1019

Reverse the Linked List. Input: 1->2->3->4->5->NULL Output: 5->4->3->2->1->NULL

761

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