object oriented programming with objective c

... Project The Essence of Object- Oriented Analysis Object Discovery Evaluate Candidate Objects Determine Object Hierarchies Discover Object Attributes Discover Object Operations The Essence of Object- Oriented ... Other OO Concepts Abstract Classes Visibility of Methods Class vs Instance Accessing Objects A Low-Level View of Objects Chapter Summary Resources Object- Orientation UML Chapter 3: Objects in Java ... run-time constructor An operation that creates an object and defines its initial state For complex objects, construction can be a significant activity, and cause the constructors of other objects...

Ngày tải lên: 22/08/2013, 14:52

... Project The Essence of Object- Oriented Analysis Object Discovery Evaluate Candidate Objects Determine Object Hierarchies Discover Object Attributes Discover Object Operations The Essence of Object- Oriented ... Other OO Concepts Abstract Classes Visibility of Methods Class vs Instance Accessing Objects A Low-Level View of Objects Chapter Summary Resources Object- Orientation UML Chapter 3: Objects in Java ... run-time constructor An operation that creates an object and defines its initial state For complex objects, construction can be a significant activity, and cause the constructors of other objects...

Ngày tải lên: 20/12/2013, 21:16

... protect your source code in a VCX The Component Gallery Basic functionality Working with existing catalogs Creating catalogs Conclusion Chapter 6: Good Habits Coding standards Object naming conventions ... Information of special interest, related topics, or important notes are indicated by this "Note" icon Section 1 Section Basic Concepts Section Chapter 1: Basic Concepts Chapter Basic Concepts This ... 27 Chapter 2: How Things Are Done in Visual FoxPro 31 Instantiating classes Constructors and destructors CreateObject() NewObject() AddObject() and NewObject() Passing parameters to objects SCATTER…...

Ngày tải lên: 21/12/2013, 20:15

... 01 01 01 anObject usage object reference secdObject usage object reference factory of BankAccount thirdObject usage object reference active-class fourthObject usage object reference Rentable ... objects of a particular type An account class defines account objects and a ledger class defines ledger objects An account object is said to be an instance of the account class, or an instance ... instance objects For example, the factory object of an account class could include a data item for keeping a count of the number of account objects created In OO COBOL, a class is a COBOL source...

Ngày tải lên: 12/02/2014, 23:20

... III: WRITING YOUR OWN CLASSES CHAPTER 9: DESIGNING CLASSES Class Design Scope Block Scope Local Scope Class Scope Namespace Scope Visualizing Scope Why Does C# Support Scope? Think Before You ... WRITING CUSTOM CLASSES Constructors Default Constructors Nondefault Constructors Constructor Overloading Constructor Sloppiness Fixing the Constructor Problem Always Call the Default Constructor Property ... introduction to object- oriented programming The goal of that chapter is to present the concept of objects fi rst and then ease into how objects may be viewed in C# Virtually all of the concepts...

Ngày tải lên: 15/02/2014, 07:20

... to your computer Pedagogical Features Objectives Each chapter begins with a set of learning objectives Case Studies Many chapters contain fully designed case studies with comprehensive documentation, ... In Chapter we show you how to use classes from the Java Application Programming Interface (API) and how to create objects By Chapter we introduce you to object- oriented programming and the creation ... approaches, the avi package provides good practice in the use of abstraction and third-party packages v vi Preface ■ Since Java is an object- oriented programming language, we introduce objects...

Ngày tải lên: 05/03/2014, 13:20

... you interact with a car object A car object consists of other objects that interact with each other to accomplish the task of getting you to the store You put the key in the ignition object and ... your study of object- oriented programming and Visual Basic, this chapter will briefly look at the history of object- oriented programming and the characteristics of an object- oriented programming ... the button object interacts with a printer object, which interacts with the printer to accomplish the task of printing the page OOP concepts started surfacing in the mid-1960s with a programming...

Ngày tải lên: 14/03/2014, 23:20

... object1 .member_function2(); object2 .member_function1(350); object2 .member_function2(); } Object Oriented Defining Objects s exampleclass object1 ,object2 ; defines two objects, object1 and object2 , of class ... Session Objectives s Discuss the following: • The Object- Oriented approach • Drawbacks of traditional programming • Object- Oriented programming s Discuss basic Object- Oriented concepts such as: • Objects ... is called the class member operator Object Oriented Two objects with different values object_ data object_ data 200 object1 Objects of the class exampleclass Specifications for exampleclass objects...

Ngày tải lên: 16/03/2014, 01:20

... count: int car_number; char name[30]; public: race_cars(){count++;} //constructor to increment count ~race_cars(){count ;} //destructor to decrement count }; int race_cars::count; The static data ... each object Object Oriented Objects, data members and member functions in memory Object Object data data mem_function1() data data mem_function2() Object data data Object Oriented Static Data Members ... static member is declared as a private category of the class, the non-member functions cannot access it If it is declared as public, then any member of the class can access Static member can become...

Ngày tải lên: 16/03/2014, 01:20

... get_declared_classes() function�� " A block of code will be set as follows:

Ngày tải lên: 22/03/2014, 23:20

... function declaration class first{ public: void display(); }; class second{ public: void display(); }; Object Oriented Scope rules (Contd.) void main() { first object1 ; second object2 ; object1 .display(); ... function is called like func(xobject), while a member function is called like xobject.func() • Designer can select the syntax that is considered most readable Object Oriented Friend classes Declare ... function overloading takes place object2 .display(); } • The scope is strictly confined to the classes in which they are declared Object Oriented Passing arguments by value Called function creates...

Ngày tải lên: 23/03/2014, 04:21

... (Contd.) objectA = objectB; objectA: object of destination class objectB: object of source class s Conversion of objects of two different classes can be achieved with: • One-argument constructor ... Operator Describe Copy Constructors Object Oriented Programming with C+ +/ Session 4/ of 49 Session Objectives (Contd.) s Describe conversion functions which help in conversion • from Basic types ... an object is passed as an argument to a function • when a function returns an object Object Oriented Programming with C+ +/ Session 4/ 32 of 49 Copy Constructor (Contd.) s s s The copy constructor...

Ngày tải lên: 23/03/2014, 04:21

... public • Objects defined outside the class can access class members only if the members are public Object Oriented Accessing Base Class Members With inheritance: • Derived class members can access ... b1.func(); Derived a1; a1.func(); } //base class object //calls base class func //derived class object //calls derived class func Object Oriented Container classes Inheritance can be termed as an "is ... members (Contd) Members of the derived class can access public and protected members; they cannot access the private members of the base class • In conformance with the object- oriented concept of...

Ngày tải lên: 23/03/2014, 04:21

... • Constructors and Destructors s Use Pointers to Objects to access Member Functions Object Oriented Programming with C+ + / Session / of 44 Session Objectives(Contd.) s Describe Virtual functions ... static binding will be used s Object Oriented Programming with C+ + / Session / 35 of 44 Pure Virtual functions s Some classes such as class Shapes, represent abstract concepts for which objects cannot ... object of class Teaching assistant will invoke the Person class constructor twice Object Oriented Programming with C+ + / Session / 15 of 44 Virtual Base Classes s Multiple inheritance hierarchies...

Ngày tải lên: 23/03/2014, 04:21

... extend an object, the object which you are extending is the superclass of a newly extended object Instance: Whenever you create an object by calling its constructor, it will be called an instance To ... extend a class and create a completely new object The new object can retain all the functionality of the parent object from which it is extended or can override The new object can also introduce some ... static property actually works:

Ngày tải lên: 12/08/2014, 21:21

... $SomeObject->getObjectOne()->getObjectTwo()->callMethodOfObjectTwo(); The above code means that $someObject class has a method named getObjectOne() which returns an object named $objectOne This $objectOne ... include_once("PGSQLConnectionException.class.php"); include_once("PGSQLQueryException.class.php"); error_reporting(0); class DAL { public $connection; public $result; public function connect($ConnectionString) ... user=postgres2"); try{ $db->execute("select * from abc"); } catch (Exception $queryexception) { echo $queryexception->getMessage(); } } catch(Exception $connectionexception) { echo $connectionexception->getMessage();...

Ngày tải lên: 12/08/2014, 21:21

... remotely created object The methods of a remote object are exposed via the XML RPC server and then they are accessed via XML RPC clients [ 86 ] Chapter Context Local Object Remote Object Proxy ... driver classes

Ngày tải lên: 12/08/2014, 21:21

... { $counter = $class->newInstance(); echo ' -> $counter is instance? '; echo $class->isInstance($counter) ? 'yes' : 'no'; echo "\n -> new Object( ) is instance? "; echo $class->isInstance(new Object( )) ... public bool isPassedByReference() public ReflectionFunction getDeclaringFunction() public ReflectionClass getDeclaringClass() public ReflectionClass getClass() public bool isArray() public bool ... static $c = Counter::START; /** * Invoke counter * * @access public * @return int */ public function count() { return self:: $c+ +; } } // Create an instance of the ReflectionClass class [ 100 ] Chapter...

Ngày tải lên: 12/08/2014, 21:21