an introduction to object oriented programming

... chaotic landscape of that era.To put an end to this unsatisfactory situation, in 1996 the Object Object Management Management Group(OMG) [33], the most important standardization body for object-oriented ... class diagram and its potential translations into program code It is important to note that UML is not tailored to any specific object-oriented language; instead, we adopt a notion of object-orientation ... cases • Does an actor want to query or even modify information contained in the system? • Does an actor want to inform the system about changes in other sys- tems? • Should an actor be informed

Ngày tải lên: 30/11/2023, 10:41

... book is to give an introduction into the area of objectrecognition It is addressed to readers who are not experts yet and should helpthem to get an overview of the topic I don’t claim to give ... it aims at giving an introduction into the field of object recognition When I started to introduce myself into the topic, Iwas fascinated by the performance of some methods and asked myself what ... sensitive to inter-class variations andthereby maintaining the ability to distinguish between objects searched for andother objects This amounts to balancing which kind of information has to bediscarded

Ngày tải lên: 29/08/2020, 18:21

... Trang 1An Introduction to Programming with C# Threads Andrew D Birrell [Revised May, 2005]   This  paper  provides  an  introduction  to  writing  concurrent  programs  ... Categories  and  Subject  Descriptors:  D.1.3  [Programming  Techniques]:  Concurrent  Programming;  D.3.3  [Programming  Languages]:  Language  Constructs  and  Features— Concurrent programming structures; D.4.1 [Operating Systems]: Process Management  ... The simplest way that threads interact is through access to shared memory. In an object‐oriented  language,  this  is  usually  expressed  as  access  to  variables  which are static fields of a class, or instance fields of a shared object. Since threads are running 

Ngày tải lên: 07/07/2014, 00:20

... 6 1.2.5 MATLAB, Object-Oriented Programming, and You 8 1.3 Attributes, Behavior, Objects, and Classes 9 1.3.1 From MATLAB Heavyweight to Object-Oriented Thinker 9 1.3.2 Object-Oriented Design ... identification and explanation without intent to infringe. Library of Congress Cataloging-in-Publication Data Register, Andy H. A guide to MATLAB object-oriented programming / Andy H Register. ... 10:52 AM Trang 9viii A Guide to MATLAB Object-Oriented ProgrammingChapter 3 Member Variables and Member Functions 29 3.1 Members 29 3.2 Accessors and Mutators 30 3.2.1 A Short Side Trip to Examine

Ngày tải lên: 05/08/2014, 21:20

... Developing effective object-oriented software in any language involves a lot more than mastering the coding mechanics Compared to structured programming, object-oriented programming FIGURE 1.2 ... Listing are familiar, you stand an excellent chance of taking full advantage of MATLAB object-oriented programming Code Listing 1, Command Line Example to Illustrate Class and Object 1 >> x = ... required to have a function that both clients and MATLAB can use to create an object filled with default values In object-oriented terminology, the m-file that creates an object is called a constructor

Ngày tải lên: 05/08/2014, 21:21

... involve the use of superiorto and inferiorto commands These commands and their use are described in §4.1.1 Inheritance also affects the search The directories for the object’s Trang 4most specific type ... of an interface and we can use the interface to interact with objects of the class We need to construct some cShape objects and exercise the interface We need to both demonstrate the syntax and ... function is a mutator because the object, this, is passed in and out Line 2 loops over all objects in this We could vectorize the code with calls to num2cell and deal Line 3 calculates the object’s size

Ngày tải lên: 05/08/2014, 21:21

... still an object and the built-in display function has only one format for displaying an object The command did not crash, but the output is too cryptic Command uses struct to change the object into ... 2:06 PM Displaying an Object’s State Being able to view the state of an object is vitally important to class development, client use, and code maintenance Being forced to index and display individual ... all objects instantiated by this constructor To deactivate developer view and activate the standard view, change the assignment in line back to [] The constructor located under the directory

Ngày tải lên: 05/08/2014, 21:21

... 2:15 PM Trang 396 A Guide to MATLAB Object-Oriented Programmingto read and write any field in the structure Mutation does not carry into the object, but once a client has a structure, the object ... Trang 9102 A Guide to MATLAB Object-Oriented Programming8.2.1 I MPLEMENTING GET AND SET The implementations for get and set need to do three things: access and mutate public variables, access and ... Trang 194 A Guide to MATLAB Object-Oriented Programming6.5 INDEPENDENT INVESTIGATIONS 1 In the ‘-full’ case, use class to inspect and assign the field’s type What are you going to do for object

Ngày tải lên: 05/08/2014, 21:21

... calls to struct and fieldnames These changes show up in the standard_view subfunction The format for developer_view also changes slightly 10 13 % due to superiorto, need to look at this and varargin ... from the constructor and try to create a cShape object Do you get an object back from the constructor? What happens to the public variables? Is this behavior potentially useful? Trang 10Before we ... Trang 99.6 INDEPENDENT INVESTIGATIONS1 Create a new display function called expanded_view that uses full_display format to display an object’s public variables only 2 Build an object array and

Ngày tải lên: 05/08/2014, 21:21

... available to the constructor Private functions represent an important topic and before we get too involved with inheritance, we will take another brief side trip to examine the private class directory ... abbreviation ctor is short for constructor, and the abbreviation ini is short for initialization Code to convert the structure into an object, code to modify the superiority, and code to save the ... included in the standard implementation The standard object-oriented vocabulary gives these constructors different names because most object-oriented languages implement each constructor using a different

Ngày tải lên: 05/08/2014, 21:21

... of a ctor_ini function that can be used to construct cDiamond objects If you want to add private member variables to the child, you already know how to add them Simply modify ctor_ini to add ... calls to the parent directory, /@cShape Our cStar class has a constructor, and we can indeed create an object All we have to do is call the constructor, for example: star = cStar; We can also ... layer back onto the object The parent portion may have changed, and the original child portion is restored intact We need to examine this to find out if MATLAB is doing anything to our object Fortunately,

Ngày tải lên: 05/08/2014, 21:21

... figure_handle = handle_array(1); % use existing 24 [this.mFigureHandle] = deal(figure_handle); % save the handle 25 figure(handle_array); % use the handle 26 27 if nargin < 2 Trang 8Object ... for cStar and cDiamond. 1.5 1 0.5 0 –0.5 –1 –1.5 0 Trang 9182 A Guide to MATLAB Object-Oriented Programming13.2 SUMMARY In this chapter, we tied up some loose ends related to inheritance and arrays ... figures are identical to Figure 13.1 and Figure 13.2.* The process of looping over object arrays is common in other object-oriented languages, and it isn’t too objectionable in MATLAB It would be

Ngày tải lên: 05/08/2014, 21:21

... parent_list' Trang 715.1.2.3 Composition Changes to cShape’s get.mA change to the way ColorRgb is stored and a new public member variable trigger changes to cShape’s get.m These changes are isolated to two ... Composition Changes to cShape’s set.m A change to the way ColorRgb is stored and a new public member variable also trigger changes to cShape’s set.m These changes are also isolated to the same ... addition of a cLineStyle object, we can also eliminate mColorHsv and mPlotHandle Of course, we also have to change any member function that relies on mColorHsv and mPlotHandle as private variables

Ngày tải lên: 05/08/2014, 21:21

... Shooting Star –1 Trang 11Moving accessor and mutator code outside of get and set also has another benefit It allows computer-aided-software-engineering (CASE) tools to manage the addition and removal ... back into a product focus but the implementation mechanics are too tedious to allow your attention to waver Once you shift from “How do I implement objects?” back to “How do I use objects to implement ... easy to stay motivated because there are many new twists and turns After the first few, however, the repetitive syntax can quickly become monotonous and time-consuming At some point, you need to

Ngày tải lên: 05/08/2014, 21:21

... contains an entry for one constructor in addition to the default Like most of the tool’s dialogs, the constructor dialog is organized into three sections: input fields, action buttons, and a display ... function name is ctor_1 because the constructor is meant for the case when an object is constructed from one input The function prototype for ctor_1 actually contains two inputs: this and the variable ... List field The object itself is passed in and out of the constructor because the whole purpose is to populate the object with values other than default The constructor helper can modify the value’s

Ngày tải lên: 05/08/2014, 21:21

... a two-argument constructor to assign values for Color and LineWidth Click the Construc-tors button to display the dialog shown in Figure 18.5 To define a new constructor, the TABLE 18.2 cLineStyle ... display and clicking The field values are now active and can be modified Click Save Change to commit the changes before selecting the next name After entering all the data, click Done to return to ... Accessor Expression Mutator Expression Comment LineWidth integer > 0 mLineWidth %helper LineHandle graphics handle mLineHandle mLineHandle Public graphics handle to the line plot FIGURE 18.5

Ngày tải lên: 05/08/2014, 21:21

... other object-oriented languages These include containers, singleton objects, functors, and iterators These classes require strong encap-sulation and a flexible object-oriented language The fact ... language and the user community Like many disruptive technologies, it is hard to know in advance what will be embraced Unlike many languages, MATLAB’s evolution isn’t restricted by an ISO standard ... Redefining size and length doesn’t help, but thanks to the foresight of the MATLAB developers, we can code around this problem too In this situation, end acts like an operator Like any operator, MATLAB

Ngày tải lên: 05/08/2014, 21:21

... what objects can and cannot do. An object is called an instance of a class. An object is an instance of exactly one class. An instance of a class belongs to the class. The two Bicycle objects ... college dormitory, we may have many Student, Room, and Floor objects. For another pro- gram to keep track of customers and inventory for a bicycle shop, we may have Customer, Bicycle, and many other ... method getMaximumSpeed. 1. Draw an object diagram of an Account object with instance methods deposit and withdraw. 2. Is the getObstacleDistance method an instance or a class method? 1.3 Class and Instance Data Values Suppose...

Ngày tải lên: 08/03/2014, 02:20

... into object- oriented programming methodology and design—concepts that transcend a particular programming language. The concepts presented are important to the success of an object- oriented programming ... programmer who wants to gain a foun- dation in object- oriented programming along with the VB language basics. Programmers transitioning from a procedural -oriented programming model to an object- oriented ... example, I could train my dog to respond to the command “bark” and my bird to respond to the command “chirp.” On the other hand, I could train them to both respond to the command “speak.” Through polymorphism,...

Ngày tải lên: 14/03/2014, 23:20

... graphics window allows you to customize its appearance to your desire. You can change the title, the background and its size. Let’s go ahead and modify it a bit, just to get familiar with the ... Chapter 1 An Introduction Small Basic and Programming Computer Programming is defined as the process of creating computer software using programming languages. Just like we speak and understand ... or Spanish or French, computers can understand programs written in certain languages. These are called programming languages. In the beginning there were just a few programming languages and...

Ngày tải lên: 17/03/2014, 23:20