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 the difference between #define debug 0 and #undef debug?

1190

What are the three forms of cin.get() and what are their differences?

1240

Show the declaration for a static member variable.

998

What are the stages in the development cycle?

1065

What is the protected keyword used for?

1113

What is the difference between cin.read() and cin.getline()?

1083

Declare a class vehicle and make it an abstract data type.

970

What is the difference between a type-specific template friend class and a general template friend class?

983

If a base class is an adt, and it has three pure virtual functions, how many of these functions must be overridden in its derived classes?

1081

How can you create a virtual copy constructor?

1087

Should you pass exceptions by value or by reference?

1137

Can member functions be private?

1005

What is the extraction operator and what does it do?

1085

What is the difference between delegation and implemented-in-terms-of?

1006

What is the difference between the compiler and the preprocessor?

1122

Un-Answered Questions { C++ }

How is stl different from c++ standard library?

1332

Do inline functions improve performance?

1069

How do I exit turbo c++?

1075

Why do we need constructors in c++?

1112

What are pointers used for c++?

1070

What are exceptions c++?

1044

Is c++ the most powerful language?

1091

How do you decide which integer type to use?

1008

Is c++ the hardest programming language?

1133

Differentiate between an inspector and a mutator ?

1226

Can you help me with this one? Make a program that when a user inputed a Product Name, it will display its price, and when the user inputed the quantity of the inputed product, it will show its total price. The output must be like this: Product Name: Price: Quantity: Total Price: ..this is the list of products to be inputed: Cellphone - 1500 Washing Machine - 5200 Television - 6000 Refrigirator - 8000 Oven - 2000 Computer - 11000 thanks..:D

3668

How to handle exception in c++, For example in a functions i am assigning memory to some variables and also in next instructions in am dividing one variable also. If this functions generates a error while allocating memory to those variable and also while dividing the variable if i divide by zero then catch block how it will identify that this error has cone from perticular instruction

2144

What is abstract class in c++?

1054

What is the difference between reference and pointer?

1159

How would you implement a substr() function that extracts a sub string from a given string?

1047

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