essence of object oriented programming with java and uml

... Object- Oriented Programming School of Computer Science University of KwaZulu-Natal February 5, 2007 Object Oriented Programming using Java Notes for the Computer Science Module Object Oriented ... course in Object- Oriented Programming with Java It is assumed that students have taken a first year course in Programming and are familiar with basic (procedural) programming and introductory object- based ... heart of object- oriented programming, instead of tasks we find objects – entities that have behaviors, that hold information, and that can interact with one another Programming consists of designing

Ngày tải lên: 12/08/2014, 21:21

... the Javadoc system for explicit labeling of preconditions and postconditions, but that has not yet been done 2. 2.3 APIs and Packages One of the important advantages of object- oriented programming ... named javax.swing, which includes such classes as javax.swing.JButton, javax.swing.JMenu, and javax.swing.JFrame The GUI classes in javax.swing, together with the foundational classes in java. ... primitive types and object types (Classes) In some object- oriented languages, everything is an object However in J AVA and in C++, the primitive types like int and double are not objects This

Ngày tải lên: 12/08/2014, 21:21

... from the java. awt and java. swing packages as well as from another package named java. awt.event, and I usually begin such programs with import java. awt.∗; import java. awt.event.∗; import javax.swing.∗; ... standard Java API was produced using javadoc. Javadoc documentation is prepared from special comments that are placed in the Java source code file. Recall that one type of Java comment begins with ... types of doc tag: If you want to create Web-page documentation, you need to run the javadoc tool. You can use javadoc in a command line interface similarly to the way that the javac and java commands

Ngày tải lên: 12/08/2014, 21:21

... recently completed version 2 of the UML standard—known as UML2 . UML is designed for Object Oriented software design and has limited use for other programming paradigms. UML is not a method by itself, ... compatible with the leading object- oriented software development methods of its time (e.g., OMT, Booch, Objectory). Since UML has evolved, some of these methods have been recast to take advantage of ... Polymorphism is one of the major distinguishing features of object- oriented programming Perhaps this becomes more understandable if we change our terminology a bit: In object- oriented programming,

Ngày tải lên: 12/08/2014, 21:21

... before, in connection with black boxes in general and methods in particular. The interface of a method consists of the name of the method, its return type, and the number and types of its parameters. ... PokerGame object. Each PokerGame object has its own deck and pot and Players. Players of that poker game use the deck and pot for that game; players of another poker game use the other game’s deck and ... the ID variable of the object. .. to an object, not to the class itself, and there can be many objects with their own versions of the instance method But there is only one copy of a static member

Ngày tải lên: 12/08/2014, 21:21

... generated by an object of type RandomStringsPanel If panel is a variable that refers to the panel object, we can create a mouse listener object and register it with the panel with the statements: ... beyond the top and bottom of the applet Here is the complete source code for the RandomStringsPanel import import import import java. awt.Color; java. awt.Font; java. awt.Graphics; javax.swing.JPanel; ... but as you gain experience with it, you will find that it is very flexible and that it goes together very well with object oriented programming. (We will return to events and listeners in much more

Ngày tải lên: 12/08/2014, 21:21

... both objects. Each object can be developed independently, with no knowledge of the internal operation of the other object. This is the essence of modular design : Build a complex system out of ... screen and how to handle mouse events and keyboard events. In one sense, that’s all there is to GUI programming. If you’re willing to program all the drawing and handle all the mouse and keyboard ... listener objects. A special form of the new operator is used to create an object that belongs to an anonymous class. For example, a mouse listener object can be created with an expression of the

Ngày tải lên: 12/08/2014, 21:21

... extend Java s basic philosophy of type-safe programming to generic programming 167 8. 1 Generic Programming in Java JAVA ’ S GENERIC PROGRAMMING FEATURES are represented by group of generic ... 13=KING). e.g. c12 is the Queen of clubs; d1 is the Ace of Diamonds; h8=8 of hearts. There are two images of the back of a card (b1fv.gif and b2fv.gif). The testing of the Card class can be done ... variable of type Object Any object can be put into... criterion for testing non-null objects for equality can differ from one kind of collection to another.) • coll.remove (object) –removes object

Ngày tải lên: 12/08/2014, 21:21

... comparison of objects in Java, and that is to provide a separate object that is capable of making the comparison. The ob- ject must implement the interface Comparator<T>, where T is the type of ... java. util.ArrayList and java. util.LinkedList. These classes are part of the Java Collection Framework. Each implements the interface List<T>, and therefor the interface Collection<T>. An object of ... sequence of objects of type T, stored in an array that will grow in size whenever necessary as new items are added. An object of type LinkedList<T> also represents an ordered sequence of objects

Ngày tải lên: 12/08/2014, 21:21

... is: throw exception? ?object ; The exception -object must be an object belonging to one of the subclasses of Throwable. Usually, it will in fact belong to one of the subclasses of Exception. In most ... 219 10.1 Streams, Readers, and Writers Without the ability to interact with the rest of the world, a program would be useless. The interaction of a program with the rest of the world is referred ... Historically, one of the hardest parts of programming language design has been coming up with good facilities for doing input and output. A computer can be connected to many different types of input and output

Ngày tải lên: 12/08/2014, 21:21

... illusion for real object oriented programming. In PHP4 you can create objects but you can't feel the real avour of an object there. In PHP4 it was almost a poor object model. One of the main ... the object oriented programming and how it ts in with PHP. We have also learned some benets over procedural and functional programming. However, we haven't gone through the details of ... tricks in object oriented programming to solve similar sets of problems with a smarter approach. Using design patterns (DP) can increase the performance of your whole application with minimal

Ngày tải lên: 12/08/2014, 21:21

... class. We will then learn about some handy object- oriented information functions and also one of the great new features in PHP5, which is exception handling. This chapter will also introduce ... overloading, or even to provide smooth error handling when an undened method is called on an object. __call takes two arguments: the name of the method and an array of the arguments passed to the undened ... with or without parameters are written. And in the third box all the properties are written. That's it! Chapter 2 [ 43 ] Summary In this chapter we have learned how to create objects and

Ngày tải lên: 12/08/2014, 21:21

... One of the most used design patterns is Singleton This pattern solves a very significant problem in object oriented programming and saves the lives of millions of programmers in practical programming ... comes our first version of a Writely object: So how does it fit with. .. using GoogleDocs object } } ?> Now we will just instantiate an instance of GoogleDocsAdapter and then use that instance ... increases the portability of your code Using the Proxy pattern you can create a local version of a remote object It provides a common API for accessing methods of a remote object without... for clients:

Ngày tải lên: 12/08/2014, 21:21

... that object. We will demonstrate it in examples later in this chapter. getConstructor() returns the reference of the constructor of the object as a the reference of the constructor of the object ... or object to gure out its properties and methods. You can invoke those methods dynamically and do some more. In this chapter we will learn in more detail about reections and use of each of ... object is a ReflectionMethod object. object. getMethods() returns an array of all the methods in the object. In that arrayreturns an array of all the methods in the object. In that array every

Ngày tải lên: 12/08/2014, 21:21

... goal of this book is to cover the essence of what you need to know to develop object- oriented software using Java and 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 essence of object orientation without overwhelming you with all the details of a specific object- oriented...

Ngày tải lên: 20/12/2013, 21:16

... Audience Object- Oriented Programming with Java is written for first-year college/univer- sity programming courses worldwide. It introduces you to object- oriented design and programming and can ... fundamentals of programming and 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 Programming with 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...

Ngày tải lên: 05/03/2014, 13:20

... program. Object Oriented 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 Object Oriented 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); Object Oriented 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...

Ngày tải lên: 23/03/2014, 04:21

... Destructors: ã The destructor of the class is called first, then those of member objects, and then the base classes. Object Oriented Programming with C++ / Session 6 / 27 of 44 Virtual functions(Contd.) ■ We ... Base Object Oriented Programming with C++ / Session 6 / 20 of 44 Virtual Base Classes (Contd.) ■ Virtual base class is represented by a single object of 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. Object Oriented Programming with C++ / Session 6 / 17 of 44 Example class...

Ngày tải lên: 23/03/2014, 04:21

... Essentials of Object- Oriented Programming Object- Oriented Programming Object- oriented programming arose to alleviate these problems. Object- oriented programming, if understood and used wisely, ... 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 also ... 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...

Ngày tải lên: 10/12/2013, 16:16

... End of the factory object oppubb.book Page 49 Tuesday, March 16, 2004 12:23 PM Destroying Objects 45 Object- oriented Programming with COBOL section Preventing Reallocation of Object Handles ... 23 Object- oriented Programming with 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- oriented Programming with 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...

Ngày tải lên: 12/02/2014, 23:20