... goal of this book is to cover the essenceof what you need to
know to develop object- oriented software using Javaand UML.
When you are through with this book, you should understand object-
oriented ... Book?
programming with Java, and now want to understand the
fundamentals of object- oriented software development. If you're
fairly new to programming, and have had a class or two in Java, ... learn
object- oriented software development.
The goal of this book is to introduce you to the essenceofobject
orientation without overwhelming you with all the details of a
specific object- oriented...
... Audience
Object- OrientedProgrammingwithJava is written for first-year college/univer-
sity programming courses worldwide. It introduces you to object- oriented
design andprogrammingand can ... fundamentals ofprogrammingand can create and
use classes competently, you can then explore the Java language and object- ori-
ented programming to a much greater depth. Chapters 6 and 7 cover ... study of Object- Oriented
Programmingwith Java.
1. Using your editor, open program Example_2 .java.
2. Locate those lines in the program that print the message, and change the
message to one of your...
... program.
ObjectOriented
Programming with C++/
Session 3/ 27 of 35
Scope rules (Contd.)
void main()
{
first object1 ;
second object2 ;
object1 .display();
//no function overloading takes place
object2 .display();
}
ã
The ... number of arguments
ObjectOriented
Programming with C++/
Session 3/ 24 of 35
Overloading with various data types
Compiler can distinguish between overloaded
functions with the same number of ... display(float number);
ObjectOriented
Programming with C++/
Session 3/ 23 of 35
Advantages
Eliminates the use of different function
names for the same operation
Helps to understand and debug code...
... Destructors:
ã
The destructor of the class is called first,
then those of member objects, and then the
base classes.
ObjectOrientedProgrammingwith C++ / Session
6 / 27 of 44
Virtual functions(Contd.)
■
We ... Base
ObjectOrientedProgrammingwith C++ / Session
6 / 20 of 44
Virtual Base Classes (Contd.)
■
Virtual base class
is represented by
a single objectof
the class.
■
Note the
difference with ... from any
of the given classes using the pointer of the base class
is a form of polymorphism.
E.g Using virtual functions.
ObjectOrientedProgrammingwith C++ / Session
6 / 17 of 44
Example
class...
... Essentials of Object- OrientedProgramming
Object- OrientedProgramming
Object- orientedprogramming arose to alleviate these problems. Object- oriented
programming, if understood and used wisely, ... Module 7: Essentials of Object- OrientedProgramming iii
Instructor Notes
This module provides students with the basic theory, concepts, and terminology
of object- oriented programming. It also ... Essentials of Object- OrientedProgramming
What Is an Object?
An object is an instance of a class
Objects exhibit:
Identity: Objects are distinguishable from one another
Behavior: Objects...
... End of the factory object
oppubb.book Page 49 Tuesday, March 16, 2004 12:23 PM
Destroying Objects 45
Object- orientedProgrammingwith COBOL
section Preventing Reallocation ofObject Handles ... 23
Object- orientedProgrammingwith COBOL
change the internals of how the object represents and operates on
data, without affecting the rest of the system.
Classes
A class is a definition of ... PM
Object- orientedProgrammingwith COBOL
42 Chapter 3 Using Objects in Programs
Creating a New Instance Object
When you create a new object, the run-time system allocates an object
handle, and...
... program
Welcome to the world of object- orientedprogrammingand C#! The primary goal of this
book is to use the C# programming language from Microsoft to teach you object- oriented
programming, or OOP. ... appreciate all that object- orientedprogrammingand C# can do
for you.
flast.indd xxvflast.indd xxv 10/8/2012 8:54:52 AM10/8/2012 8:54:52 AM
BEGINNING
Object- OrientedProgramming
with C#
Jack Purdum
ffirs.indd ... distillation of 25
years ofprogrammingand teaching experience. I have a good idea of what works and what
doesn’t work to explaining complex topics so that they’re easy to understand. Reading...
... firm grasp of object- oriented programming. Now is the time to become acquainted
with the fundamentals of object- orientedprogramming before transitioning to the current ver-
sion of VB and the .NET ... Modeling
Language (UML) .
UML was developed in the early 1980s as a response to the need for a standard, systematic
way of modeling the design of object- oriented software. It consists of a series of textual and
graphical ... higher-level concepts of object- oriented programming
methodology and design.
This book provides you with the information needed to understand how you go about archi-
tecting an object- oriented programming...
... abbreviation of class of objects.
ã
Example, A class of persons, class of animals, class of
processes.
■
Each object is said to be an instance of its class.
ObjectOriented
Programming with C++/ ... Oriented
Programming with C++/
Session 1/ 2 of 50
Session Objectives
Discuss the following:
ã
The Object- Oriented approach
ã
Drawbacks of traditional programming
ã
Object- Oriented programming
Discuss ... 24 of 50
Class Animals and its subclasses
Animals
Insects Mammals
Reptiles
Amphibians
ObjectOriented
Programming with C++/
Session 1/ 39 of 50
Defining Objects
■
exampleclass object1 ,object2 ;...
... a constant
ObjectOriented
Programming with C++/
Session 2/ 25 of 37
Objects and functions in memory
Each object has its own copy of the data
members of the class.
All the objects in ... ObjectOriented
Programming with C++/
Session 2/ 26 of 37
Objects, data members and member functions in
memory
Object 1
data 1
data 2
Object 2
data 1
data 2
Object 3
data 1
data ... = 5;} //error
ObjectOriented
Programming with C++/
Session 2/ 29 of 37
The count is common
Count:
3 cars in the race
ObjectOriented
Programming with C++/
Session 2/ 28 of 37
Example
class...
... procedural and the other
is object oriented. You can even write procedural code in PHP5 and it will run
without any problems. If you are not clear about procedural andobjectoriented
programming, ... The main benets of OOP can be
considered as follows:
Reusability: An object is an entity which has bundles of properties and
methods and can interact with other objects. An object can be sufcient ... important features of object- orientedprogramming
in PHP, reection and unit testing. PHP5 replaces many old APIs with smarter new
ones. One of these is the Reection API, with which you can...
... obj1 and obj2 are objects of a class.
ObjectOrientedProgrammingwith C++/ Session
4/ 43 of 49
Conversion between Objects (Contd.)
objectA = objectB;
objectA: objectof destination class
objectB: ... Sample(counter++);
}
ObjectOrientedProgrammingwith C++/ Session
4/ 4 of 49
Operator Overloading
■
It is the ability to associate an existing operator
with a member function and use it with objects of
its ... objectof type Sample.
ObjectOrientedProgrammingwith C++/ Session
4/ 7 of 49
Advantage
■
Makes programs easier to read and debug.
■
Easy to understand that two objects are being
added and...
... C++/ Session 5/ 1 of 41
Inheritance
Session 5
ObjectOriented
Programming with C++/
Session 5 / 20 of 41
Types of Inheritance
A derived class can be declared with one of the
specifiers ... int m;
B obj1; / /object of publicly derived class
ObjectOriented
Programming with C++/
Session 5 / 39 of 41
Container classes (Contd.)
When a class contains an objectof another
class ... than
"is a".
ObjectOriented
Programming with C++/
Session 5 / 41 of 41
Constructors (Contd.)
In the constructor of class jet the name of the
object of the class engine is written...
... reading
Object- OrientedProgramming Concepts
http:/ /java. sun.com/docs/books/tutorial /java/ concepts/index.html
Object and Classes in Java
http:/ /java. sun.com/docs/books/tutorial /java/ javaOO/index.html
20
How the ... hierarchical packages,
such as java. lang and java. util
http:/ /java. sun.com/j2se/1.4.2/docs/api
Main reason to use package is to guarantee the
uniqueness of class names
classes with same names can be ... interpreter stops searching process
1
Lecture 2:
Object Oriented Programming
in Java
2
Object Creation
Body sun = new Body( );
An object is created by the new method
The runtime system...
... principle of object- orientedprogramming is
All objects are instances of a class. The method invoked by an object in
response to a message is determined by the class of the receiver. All objects
of ... conceptual picture of object- oriented programming:
An object- oriented program is structured as community of interacting agents
called objects. Each object has a role to play. Each object provides ... more
natural and hence easier to get right and easier to understand.
An object- orientedprogramming language such as JAVA includes a number of
features that make it very different from a standard language....