CSE2001: Introduction to Object Oriented Programming with C++

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Questions and Answers

What is the primary goal of studying object-oriented programming?

To understand the principles of object-oriented programming (correct)

To solve real-world problems using C++

To learn the syntax and semantics of C++

To create complex software applications

What is one of the key characteristics of an object-oriented language?

Scripting languages

Procedural programming

Functional programming

Data abstraction (correct)

What is the benefit of using object-oriented design approach to solve real-world problems?

It is only suitable for small-scale applications

It makes the code more complex

It increases the execution time of the program

It allows for code reuse (correct)

What is the purpose of UML class diagrams in object-oriented programming?

To visualize the relationship between classes and objects Signup and view all the answers

What is the term for a function that returns a reference to a variable?

Reference function Signup and view all the answers

What is the purpose of exception handling in object-oriented programming?

To handle runtime errors Signup and view all the answers

What is the fundamental idea behind object-oriented approach?

To combine both data and function into a single unit Signup and view all the answers

What does the term 'object' refer to in object-oriented programming?

A combination of data and program Signup and view all the answers

What is a class in C++?

A new data type that contains member variables and member functions Signup and view all the answers

What is data abstraction in object-oriented programming?

Representing essential features without including background details Signup and view all the answers

What is data encapsulation in object-oriented programming?

Wrapping up data and function into a single unit Signup and view all the answers

What is the purpose of functions in a class?

To provide an interface between the object's data and the program Signup and view all the answers

What is the primary advantage of object-oriented programming?

Improved code reusability Signup and view all the answers

What is a characteristic of procedure-oriented programming?

Functions sharing global data Signup and view all the answers

What is the primary difference between procedure-oriented and object-oriented programming?

Emphasis on data vs. procedure Signup and view all the answers

What is a feature of object-oriented programming?

Data is hidden and encapsulated Signup and view all the answers

What is a disadvantage of procedure-oriented programming?

Inability to reuse code Signup and view all the answers

What is the result of dividing large programs into smaller functions in procedure-oriented programming?

Tighter coupling between functions Signup and view all the answers

What is the primary goal of using Object-Oriented Programming (OOP) in software design?

To reduce the complexity of the program and make it easy to maintain and upgrade Signup and view all the answers

What is the primary benefit of using message passing in OOP?

To make the interface with external systems easier Signup and view all the answers

Who developed the C++ programming language?

Bjarne Stroustrup Signup and view all the answers

What is a message in object-oriented programming?

A request to execute a procedure in an object Signup and view all the answers

What is a characteristic of object-oriented languages?

Data abstraction Signup and view all the answers

What is the primary characteristic of C++ that distinguishes it from C?

It is an object-oriented programming language Signup and view all the answers

What is one of the applications of object-oriented programming?

Real-time systems Signup and view all the answers

What is the file extension of a C++ program?

.CPP Signup and view all the answers

What is the primary focus of C++ programming?

Data rather than procedures Signup and view all the answers

What is a benefit of object-oriented programming?

Reusability of functions and modules Signup and view all the answers

What is inheritance in object-oriented programming?

A way to extend the use of existing classes Signup and view all the answers

What is a result of object-oriented programming?

Reduced problem complexity Signup and view all the answers

Study Notes

Object-Oriented Programming (OOP)

Each object is responsible for a specific task, and the problem is solved by interfacing the objects.
OOP reduces the complexity of program design, making it easy to maintain and upgrade.

Message Passing

Message passing is a technique of communication between objects, making the interface with external systems easier.

C++

C++ is an object-oriented programming language developed by Bjarne Stroustrup at AT&T Bell lab, USA in the early eighties.
C++ was developed from C and Simula 67 languages.
C++ was initially called "C with classes".

Overview of C++ Language

C++ is an incremental version of the C language, adding features of object-oriented programming.
C++ is a structured (procedure) and object-oriented programming language.
The file extension of a C++ program is ".CPP".
Function overloading and operator overloading are possible in C++.
Variables can be declared inline in C++.
C++ gives more emphasis on data rather than procedures.
Polymorphism, encapsulation, and inheritance are possible in C++.
Data abstraction property is supported by C++.
Data access is limited, and it can be accessed by providing various visibility modes for both data and member functions.

Introduction to Object-Oriented Approach

Object-oriented programming combines data and functions into a single unit called objects.
Classes are groups of objects that share common properties for data and program parts.
Abstraction refers to the act of representing essential features without including background details or explanations.
Encapsulation is the wrapping up of data and functions into a single unit (called a class).
Message passing involves specifying the name of the object, the name of the function (message), and information to be sent.

Applications of OOP

Real-time systems
Simulation and modeling
Object-oriented databases
Hypertext, hypermedia, and Expertext
AI and expert systems
Neural networks and parallel programming
Decision support and office automation systems
CIM/CAM/CAD systems

Benefits of OOP

Reusability: programs and modules written by a user can be reused by other users without modification
Inheritance: eliminates redundant code and extends the use of existing classes
Hiding: data and functions can be hidden in a class from other classes, helping to build secure programs
Reduced complexity of a problem: viewing a problem as a collection of different objects

Procedure-Oriented Programming

Disadvantages:
- Inability to reuse code
- Does not model real-world problems well
Characteristics:
- Emphasis is on doing things (algorithm)
- Large programs are divided into smaller programs known as functions
- Most functions share global data
- Data moves openly around the system from function to function
- Functions transform data from one form to another
- Employs a top-down approach in program design

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Description

Learn the principles of object-oriented programming and practice concepts and techniques to solve real-world problems. This course covers the basics of object-oriented approach with C++.