BCA DCA1203 OBJECT ORIENTED PROGRAMMING – C++

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Description

SESSION SEPT 2024
PROGRAM BCA
SEMESTER II
COURSE CODE & NAME DCA1203 OBJECT ORIENTED PROGRAMMING – C++

 

 

Set-I

 

  1. Explain the concept of operator overloading in C++. Why is it important, and how does it enhance the capabilities of the language?

Ans 1.

Operator Overloading in C++: An Essential Concept

Operator overloading is a powerful feature in C++ that allows developers to redefine the behavior of standard operators (such as +, -, *, =, and <<) for user-defined data types. It provides a way to enable operators to work intuitively with objects, enhancing both the readability and functionality of code.

Understanding Operator Overloading

Operators in C++ have predefined meanings for fundamental data types. For instance, the + operator can add two integers or concatenate two strings. However, for user-defined types like classes and structs, the

 

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  1. What is the purpose of access specifiers in a class? Name the three access specifiers available in C++.

Ans 2.

Access Specifiers in C++: Purpose and Types

Access specifiers in C++ play a fundamental role in object-oriented programming by controlling the accessibility and visibility of members (data members and member functions) within a class. They define how and where the members of a class can be accessed or modified, ensuring a proper encapsulation mechanism. Encapsulation, one of the core principles of object-oriented programming, aims to hide the internal details of a class while exposing only what is necessary to the outside world. This is achieved effectively through the use of access specifiers.

Purpose of Access Specifiers

Data Security and

 

 

  1. What do you understand by constant, keyword and identifier?

Ans 3.

Understanding Constants, Keywords, and Identifiers in C++

In C++ programming, constants, keywords, and identifiers are fundamental elements that form the building blocks of the language. They each have distinct roles and purposes, contributing to the structure, readability, and functionality of a program. Understanding these elements is essential for writing efficient and error-free code.

Constants

A constant in C++ refers to a fixed value that does not change during the execution of a program. Constants are used to

 

Set-II

 

  1. Explain with the help of an example the method to implement a class template.

Ans 4.

Class Templates in C++: Explanation and Example

Class templates in C++ are a powerful feature of the language that allows developers to create generic classes. Instead of writing multiple versions of a class to handle different data types, a single class template can be written and instantiated for any data type. This enhances code reusability and reduces redundancy, making it particularly useful in scenarios where the same logic applies to different types of data.

Understanding Class

 

  1. List and explain the STL components.

Ans 5.

Components of the Standard Template Library (STL) in C++

The Standard Template Library (STL) is a powerful library in C++ that provides generic classes and functions to manage data structures and algorithms. STL is designed to promote code reusability and efficiency by offering pre-built implementations of commonly used programming constructs. It is broadly categorized into three main components: containers, iterators, and algorithms.

Containers

Containers are objects that store collections of data. STL provides a variety of container types, each optimized for

 

  1. Describe the different types of inheritance in C++.

Ans 6.

Types of Inheritance in C++

Inheritance in C++ is a fundamental concept of object-oriented programming that allows a class (derived class) to inherit properties and behaviors from another class (base class). This mechanism promotes code reusability, scalability, and modularity. C++ supports several types of inheritance, each suited to specific