Purpose of Object Oriented Programming • You have learned how to structure your programs by decomposing your tasks into methods • This has made your code more modular and increases code re-use • Object Oriented Programming (OOP) is a style of programming which further decomposes your code into discrete interacting objects

OOP: Introduction 2 Pure Object-Oriented Languages Five rules [Source: Alan Kay]: •Everything in an object. •A program is a set of objects telling each other what to do by sending messages. •Each object has its own memory (made up by other objects). •Every object has a type. •All objects of a specific type can receive the same messages.

Principles of Object-Oriented Programming Download for free at http://cnx.org/contents/[email protected]. This document was …

you will walk through object-oriented programming by example; learning to use a simple object, examining the definition, extending the definition, and then designing your own object. Finally, you will explore the most important concepts in object-oriented programming: encapsulation, data hiding, messages, and inheritance.

Introduction to Object Oriented Programming: Object oriented paradigm-Differences between Object Oriented Programming and Procedure oriented programming, Basic concepts of Object Oriented Programming, Encapsulation, Inheritance and Polymorphism, Benefits of OOP, Structure of

Programming paradigms •Procedural programming: ‒programs are decomposed into procedures (functions) that manipulate a collection of data structures •Object-oriented programming ‒programs are composed of interacting entities (objects) that encapsulate data and code 2

These lecture notes are designed to provide the basic knowledge on OOP, that stands for Object Oriented Programming. During Real-Time Colleges X-Window System and Motif have been used to build Graphical User Interface, GUI for short. GUI programming is always a tricky business and needs a steep learning before some results can be obtained.

Objects are created from a class using the new operator, which invokes a constructor with matching parameter types. These objects may be assigned to variables declared of the type given by the class name. Each object has a copy of every instance variable in its class definition and in every superclass of that class.

Java is based on the concept of object-oriented programming. As the name suggests, at the center of it all is an object. Objects contain both data and the functionality that operates on that data. This is controlled by the following four paradigms.

In the previous lesson you have learnt about the basics of C++ programming. Now you will learn about basic concepts of Object Oriented Programming (OOP). The object-oriented programming (OOP) is a different approach to programming and quite suitable for managing large and complex programs. An object oriented language combines the data to its ...