basic object oriented concepts

Ngày tải lên: 16/03/2014, 01:20

Ngày tải lên: 24/01/2014, 15:45

... 3 Topics covered  Objects and object classes  An object- oriented design process  Design evolution ©Ian Sommerville 2004 Software Engineering, 7th edition. Chapter 14 Slide 25 An object- oriented design ... Chapter 14 Slide 36 Object identification  Identifying objects (or object classes) is the most difficult part of object oriented design.  There is no 'magic formula' for object identification. ... edition. Chapter 14 Slide 4 Object- oriented development  Object- oriented analysis, design and programming are related but distinct.  OOA is concerned with developing an object model of the application...

Ngày tải lên: 14/09/2012, 11:27

... for object with focus on the probabilistic framework for finding object- oriented information in unstructured data. This chapter also gives their advantages and shortcoming in solving object ... on the web. From the object oriented perspective, considering each of above domains as a class of objects, a web page containing detailed structured information as an object with its attributes. ... relevance of a given object query and a document P(relevant | object_ query, document). Assuming that object query is a conjunction of several constraints for each attributes of object and these...

Ngày tải lên: 23/11/2012, 15:04

Ngày tải lên: 18/08/2013, 14:35

Ngày tải lên: 22/08/2013, 14:52

... Support Object- Oriented Concepts? Okay, how does C# implement object- oriented programming? In a sense, this is the wrong question. C# is an object- oriented language; however, it doesn’t implement object- oriented ... no objects and no abstractions behind which to hide inherent complexity. Preparing object- oriented nachos In an object- oriented approach to making nachos, I would first identify the types of objects ... musical question, “What are the concepts behind object- oriented programming and how do they differ from the functional concepts covered in Part II of this book?” Object- Oriented Concept #1 — Abstraction Sometimes...

Ngày tải lên: 04/10/2013, 21:20

... ■ OBJECT- ORIENTED PROGRAMMING 89 7575Ch05.qxp 4/27/07 1:02 PM Page 89 Object- Oriented Programming O bject -oriented programming is the third major programming paradigm. At its heart, object- oriented ... (except from System .Object) . Object Expressions Object expressions are at the heart of succinct object- oriented programming in F#. They pro- vide a concise syntax to create an object that inherits ... System.Windows.Forms CHAPTER 5 ■ OBJECT- ORIENTED PROGRAMMING 86 7575Ch05.qxp 4/27/07 1:02 PM Page 86 printfn "myObject.state = %i, myObject.otherState = %i" myOtherObject.state myOtherObject.otherState T he...

Ngày tải lên: 05/10/2013, 10:20

Ngày tải lên: 09/12/2013, 19:15

... own work. Mastering object- oriented programming is essential for modern Flash development, and Object- Oriented ActionScript 3.0 is the only guide you’ll need. » Learn object- oriented programming ... inheri- tance long before the existence of computers). OBJECT- ORIENTED ACTIONSCRIPT 3.0 10 8458CH01.qxd 6/13/07 1:35 PM Page 10 Object- Oriented ActionScript 3.0 C opyright © 2007 by Peter Elst, ... Next, you create one or more objects from a class. Finally, you endow objects with their own individual property values. The progression from classes to objects to objects with unique properties...

Ngày tải lên: 10/12/2013, 05:15

... at the concept of Object Orientation 4 (OO). The Unified Modelling Language has been designed to support Object Orientation, and we'll be introducing Object Oriented concepts throughout ... add_student 5 enter_for_exam check_exam_marks issue_certificate expel_student 4 I'll use the phrase " ;Object Orientation" to denote Object Oriented Design and/or Object Oriented Programming 5 I'm using underscores to highlight ... world "objects" can be modelled in a similar way to the software modules we discussed earlier. For this reason, we call the modules Objects, and hence we have the term Object Oriented...

Ngày tải lên: 10/12/2013, 14:16

... 12 Module 7: Essentials of Object- Oriented Programming Object- Oriented Programming Object- oriented programming arose to alleviate these problems. Object- oriented programming, if understood ... Essentials of Object- Oriented Programming What Is an Object?  An object is an instance of a class  Objects exhibit:  Identity: Objects are distinguishable from one another  Behavior: Objects ... Module 7: Essentials of Object- Oriented Programming iii Instructor Notes This module provides students with the basic theory, concepts, and terminology of object- oriented programming. It...

Ngày tải lên: 10/12/2013, 16:16

Ngày tải lên: 12/12/2013, 21:16

... the way objects and their proper- ties are handled. Take the following line of code: $objectB = $objectA; In PHP 3 and 4, this makes a copy of $objectA and stores it as $objectB. Both objects ... point out major changes for the benefit of readers who have worked with the old object- oriented model. PHP OBJECT- ORIENTED SOLUTIONS 24 10115ch02.qxd 7/1/08 1:05 PM Page 24 whitespace triggering ... ones. PHP OBJECT- ORIENTED SOLUTIONS 26 10115ch02.qxd 7/1/08 1:05 PM Page 26 common programming tasks. Purists might argue that if you’re going to adopt OOP, every- t hing should be object- oriented, ...

Ngày tải lên: 12/12/2013, 22:15

... instantiate a validator object, and pass it the $required array $val = new Pos_Validator($required); WHY OBJECT- ORIENTED PHP? 7 1 10115ch01.qxd 7/10/08 1:12 PM Page 7 PHP Object- Oriented Solutions David ... an o bject -oriented language, but it does have extensive object- oriented features. These u nderwent comprehensive revision and enhancement when PHP 5 was released in July 2004, and the PHP 5 object- oriented ... (this object- oriented approach to input validation is explained fully in Chapter 4). Don’t worry about the terms, class, and method, either; they will be described shortly. WHY OBJECT- ORIENTED...

Ngày tải lên: 12/12/2013, 22:15

... mock objects help us see the communication between our objects more clearly. Here’s a small example of how focusing on the communication between objects guides design. In a video game, the objects ... Growing Object- Oriented Software, Guided by Tests, presents a coherent, consistent system of development, where different techniques support each other. I invite you to read Growing Object- Oriented ... Data: Freeman, Steve, 1958- Growing object- oriented software, guided by tests / Steve Freeman and Nat Pryce. p. cm. ISBN 978-0-321-50362-6 (pbk. : alk. paper) 1. Object- oriented programming (Computer...

Ngày tải lên: 14/12/2013, 21:15

... watermark. ptg Many object- oriented languages support encapsulation by providing control over the visibility of an object s features to other objects, but that’s not enough. Objects can break encapsulation ... objects see: an object s type is defined by the roles it plays. We view classes for objects as an “implementation detail”—a way of imple- menting types, not the types themselves. We discover object ... encapsulation by sharing references to mutable objects, an effect known as aliasing. Aliasing is essential for conventional object- oriented systems (other- wise no two objects would be able to communicate),...

Ngày tải lên: 14/12/2013, 21:15

... CurrentPrice: 192; Increment: 7; Bidder: Someone else; SOLVersion: 1.1; Event: CLOSE; At first, being object- oriented enthusiasts, we try to model these messages as types, but we’re not clear enough about ... and wrap that all up behind a simple API. 1 WindowLicker has the concept of a ComponentDriver: an object that can manip- ulate a feature in a Swing user interface. If a ComponentDriver can’t find ... www.verypdf.com to remove this watermark. ptg The Application Runner An ApplicationRunner is an object that wraps up all management and commu- nicating with the Swing application we’re building....

Ngày tải lên: 14/12/2013, 21:15

... (although it still insists on a default case). We’re not keen on using switch , as it’s not object- oriented, so we’ll keep an eye on this too. 4 The Sniper-specific method. It sets the fields and ... implementation is similar to a null object [Woolf98]: both are implementations that respond to a protocol by not doing anything—but the intention is different. A null object is usually one implementation ... transmission of the Sniper state into two mechanisms: the choice of listener method and the state object. That’s one mechanism too many. We realize that we could collapse our events into one notification...

Ngày tải lên: 14/12/2013, 21:15

... “single responsibility” principle, which means each object does just one thing well and the system behavior comes from how we assemble those objects. Sometimes this feels as if the behavior we’re ... also have to manage concepts such as “connection” or “chat.” When a user interaction implies an action outside the user interface, MainWindow should delegate to a collaborating object. To express ... across teams that have never quite figured out what the valid states and transitions are for key concepts in their domain, and applying this simple Chapter 18 Filling In the Details 212 From the...

Ngày tải lên: 14/12/2013, 21:15