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	Object Oriented Programming in C++ Interview Questions & Answers Below we have listed all the Object Oriented Programming in C++ Interview Questions and answers. Feel free to comment on any Object Oriented Programming in C++ Interview Questions or answer by the comment feature available on the page. To buy an eBook containing 30,000 Interview Questions, with Answers, Click Here. View All Object Oriented Programming in C++ Interview Questions & Answers - Exam Mode / Learning Mode
Object Oriented Programming in C++ Interview Questions & Answers
C++ and Object Oriented Programming. Object Oriented programming is a programming style that is associated with the concept of Class, Objects and various other concepts revolving around these two, like Inheritance, Polymorphism, Abstraction, Encapsulation etc. The prime purpose of C++ programming was to add object orientation to the C programming language, which is in itself one of the most powerful programming languages. The core of the pure object-oriented programming is to create an object, in code, that has certain properties and methods.

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Hi, I was asked the below question in one interivew. Imagine you're maintaining a big project which is having 50k+ lines of code and as part of enhancements, you received a request to add a functionality in one of the .cpp files. For this, you need to add a new function. How do you write a new fucntion without adding a prototype to the header file (because, if you add prototype in the headerfile, the compiler has to compile all the other files). So, the requirement is not to touch the header file but add functionality in the cpp file. How do you add?		View Answer
What do you mean by analysis and design?		View Answer
What are the steps involved in designing?		View Answer
What do you meant by active and passive objects?		View Answer
List out some of the object-oriented methodologies.		View Answer
Differentiate Aggregation and containment?		View Answer
What is multithreading?		View Answer
Differences of C and C++ Could you write a small program that will compile in C but not in C++ ?		View Answer
What are the defining traits of an object-oriented language?		View Answer
Will it execute or not?		View Answer
Anything wrong with this code? T *p = new T[10]; delete p;		View Answer
What are 2 ways of exporting a function from a DLL?		View Answer
How can you tell what shell you are running on UNIX system?		View Answer
What is an object?		View Answer
What is encapsulation?		View Answer
. For the following C program #define AREA(x)(3.14xx)<br>main()<br>{float r1=6.25,r2=2.5,a;<br>a=AREA(r1);<br>printf(" Area of the circle is %f", a);<br>a=AREA(r2);<br>printf(" Area of the circle is %f", a);<br>}<br> What is the Output?		View Answer
Q1.write C++ program to accept a string and display ascii value letter by letter then display sum of all ascii values. Q2.write C++ program to accept 20 nos and then display max & min.		View Answer
All the questions are compulsory. The first five questions shall be of 16 marks each and the last question shall be of 20 marks. Q1. A. What is unary operator? List out the different operators involved in the unary operator. B. What is an adjust field format flag? Q2. A. Distinguish between a # include and #define. B. Can a list of string be stored within a two dimensional array? Q3. A. Explain how a pointer to function can be declared in C++? B. List the merits and demerits of declaring a nested class in C++? Q4. A. What are the syntactic rules to be avoid ambiguity in multiple inheritence? B. Explain the operation of overloading of an assignment operator. Q5. A. Explain how the virtual base class is different from the conventional base classes of the opps. B. Explain how an exception handler is defined and invoked in a Program. Q6. A. What is a binary file? List the merits and demerits of the binary file usage in C++. B. Write short notes on Text Manipulation Routines. C. Write bites in Turbo c++ Header (“Include”) Files.		View Answer
Given an integer N>0,write a recursive c++ function that writes the integer 1,2,.......N ?		View Answer
Write a c++ programme in order to find the day you born,such that the programmer will take your birth date (day-month-year)?		View Answer