object oriented programming and java

... Contents Java Chapter 4: Object- Oriented Analysis and Design Software Methodologies The Elements of a Software Project The Essence of Object- Oriented Analysis Object Discovery Evaluate Candidate Objects ... is object orientation? What is the UML? What is Object- Oriented Analysis and Design? How you OOAD? What are object- oriented development methodologies? How you use Java to write truly object- oriented ... C++ and Java Today, Java is the emerging object- oriented language of choice for many programmers and software projects One of the main reasons for Java' s emergence is the World Wide Web, and Java' s...

Ngày tải lên: 22/08/2013, 14:52

... Contents Java Chapter 4: Object- Oriented Analysis and Design Software Methodologies The Elements of a Software Project The Essence of Object- Oriented Analysis Object Discovery Evaluate Candidate Objects ... is object orientation? What is the UML? What is Object- Oriented Analysis and Design? How you OOAD? What are object- oriented development methodologies? How you use Java to write truly object- oriented ... C++ and Java Today, Java is the emerging object- oriented language of choice for many programmers and software projects One of the main reasons for Java' s emergence is the World Wide Web, and Java' s...

Ngày tải lên: 20/12/2013, 21:16

... Object- Oriented Programming With Java, Second Edition Barry J Holmes Daniel T Joyce JONES AND BARTLETT PUBLISHERS Object- Oriented Programming with Java Second Edition Barry ... J.) Object- oriented programming with Java / Barry Holmes, Daniel Joyce p cm Includes bibliographical references and index ISBN 0-7637-1435-6 Java (Computer program language) Object- oriented programming ... the Java Application Programming Interface (API) and how to create objects By Chapter we introduce you to object- oriented programming and the creation of your own classes and objects ■ We introduce...

Ngày tải lên: 05/03/2014, 13:20

... object- oriented programming laguage provides support for the following objectoriented concepts: Objects and Classes Inheritance Polymophism and Dynamic binding 1.1.1 Programming Paradigms Object- oriented ... variables and methods If an object is also a collection of variables and methods, how they differ from classes? 1.2.1 Objects and Classes Objects In object- oriented programming we create software objects ... Object Oriented Programming using Java Notes for the Computer Science Module Object Oriented Programming COMP200 Adapted from Introduction to Programming Using Java Version 5.0,...

Ngày tải lên: 27/06/2014, 12:20

... object- oriented programming laguage provides support for the following objectoriented concepts: Objects and Classes Inheritance Polymophism and Dynamic binding 1.1.1 Programming Paradigms Object- oriented ... variables and methods If an object is also a collection of variables and methods, how they differ from classes? 1.2.1 Objects and Classes Objects In object- oriented programming we create software objects ... Object Oriented Programming using Java Notes for the Computer Science Module Object Oriented Programming COMP200 Adapted from Introduction to Programming Using Java Version 5.0,...

Ngày tải lên: 12/08/2014, 21:21

... an object Wrapper Classes and Autoboxing Recall that there are two kinds of types in J AVA: primitive types and object types (Classes) In some object- oriented languages, everything is an object ... individual objects A useful way of thinking about objects, is to see them as providing a service to other objects Thus, we can look at an object- oriented application as consisting of serviceproviders and ... Both the java package and the javax package contain sub-packages One of the sub-packages of java, for example, is called “awt” Since awt is contained within java, its full name is actually java. awt...

Ngày tải lên: 12/08/2014, 21:21

... 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 are used Javadoc can also be applied in the ... documentation for the 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 ... HTML commands, blank lines and extra spaces in the comment are ignored.) In addition to HTML commands, Javadoc comments can include doc tags, which are processed as commands by the javadoc tool...

Ngày tải lên: 12/08/2014, 21:21

... end c l a s s BlackjackHand Since BlackjackHand is a subclass of Hand, an object of type BlackjackHand contains all the instance variables and instance methods defined in Hand, plus the new instance ... major distinguishing features of object- oriented programming Perhaps this becomes more understandable if we change our terminology a bit: In object- oriented programming, calling a method is often ... other changes in the programming would be necessary 4.6 this and super A LTHOUGH THE BASIC IDEAS of object- oriented programming are reasonably simple and clear, they are subtle, and they take time...

Ngày tải lên: 12/08/2014, 21:21

... Player object a will have access to the deck and pot instance variables in the PokerGame object Each PokerGame object has its own deck and pot and Players Players of that poker game use the deck and ... inner class object is permanently associated with the containing class object, and it has complete access to the members of the containing class object Looking at an example will help, and will ... simply pulls together a few more miscellaneous features of object oriented programming in Java Read it now, or just look through it and refer back to it later when you need this material (You...

Ngày tải lên: 12/08/2014, 21:21

... goes together very well with object oriented programming (We will return to events and listeners in much more detail in later sections.) 6.3 Applets and HTML A LTHOUGH STAND - ALONE APPLICATIONS ... 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; ... fonts at random, and it calls g.setFont() to select that font for drawing the text It creates a random HSB color and uses g.setColor() to select that color for drawing It then chooses random (x,y)...

Ngày tải lên: 12/08/2014, 21:21

... the 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 ... program any of this, provided you use an object belonging to the standard class javax.swing.JButton A JButton object draws itself and processes mouse, keyboard, and focus events on its own You only ... / Create t h e deck and hand t o use f o r t h i s game hand = new Hand(); deck.shuffle(); hand.addCard( deck.dealCard() ); / / Deal t h e f i r s t card i n t o t h e hand message = " I s...

Ngày tải lên: 12/08/2014, 21:21

... list to objects of a specified type Parameterized types extend Java s basic philosophy of type-safe programming to generic programming 167 8.1 Generic Programming in Java JAVA ’ S GENERIC PROGRAMMING ... static and visible to other classes in the package Study it carefully and make sure you understand it fully (FULLY!) before you continue package solitaire; import javax.swing.∗; import java. awt.∗; ... is a subclass of the class named Object This means that every object can be assigned to a variable of type Object Any object can be put into an array of type Object[ ] An ArrayList serves much...

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 object must implement the interface Comparator, where T is the type of the objects ... understand why that is true and what can be done about it 9.1.2 Java to the Rescue Part of the problem, according to the inventors of Java, can be traced to programming languages themselves Java ... numbers, but Java will automatically convert the 17 to the corresponding wrapper object, new Integer(17), and the wrapper object will be added to the collection (The creation of the object does...

Ngày tải lên: 12/08/2014, 21:21

... to be prepared to handle them The design of Java makes it impossible for programmers to ignore the possibility of such errors Among the exceptions that require mandatory handling are several ... that can occur when using Java s input/output methods This means that you can’t even use these methods unless you understand something about exception-handling 9.3.5 Programming with Exceptions ... will handle all the normal cases The exceptional cases can be handled elsewhere, in a catch clause of a try statement When a program encounters an exceptional condition and has no way of handling...

Ngày tải lên: 12/08/2014, 21:21

... an object, anyway? Programming language view An object- oriented system is characterized by • data abstraction • inheritance • polymorphism by late-binding of procedure calls Heart of Object- Oriented ... Claim: people model the world with "objects" • objects • classes • relationships between objects • relationships between classes Modeling Advantages of object- oriented software development • more ... responsible for knowing and doing certain things Objects collaborate to carry out their responsibilities Programs organized by classes, inheritance hierarchies and subsystems What is an object, anyway?...

Ngày tải lên: 24/10/2014, 00:42

... abandon them completely Effective programming in Java comes from understanding three key areas – object- oriented concepts, the syntax and semantics of the Java programming language and the Java ... Object- Oriented Programming and Java Danny Poo • Derek Kiong Swarnalatha Ashok • Object- Oriented Programming and Java Second edition Dr Danny Poo School ... message-sending object to a message-receiving object A messagesending object is a sender while a message-receiving object is a receiver 10 Object- Oriented Programming and Java An object responds...

Ngày tải lên: 27/10/2014, 00:52

... operator prefixed to it Object Oriented Controversy about friend functions Friend functions increase flexibility in programming but they are against the principles of object- oriented programming • Breach ... overloaded Object Oriented Advantages Eliminates the use of different function names for the same operation Helps to understand and debug code easily Maintaining code is easier Object Oriented ... public: void display(); }; Object Oriented Scope rules (Contd.) void main() { first object1 ; second object2 ; object1 .display(); //no function overloading takes place object2 .display(); } • The...

Ngày tải lên: 23/03/2014, 04:21

... Virtual Base Classes • 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 ... base classes Object Oriented Programming with C++ / Session / of 44 Multiple Inheritance (Contd.) Base Teacher class Student Teaching assistant Base class Derived class Object Oriented Programming ... those of member objects, and then the base classes Object Oriented Programming with C++ / Session / 10 of 44 Ambiguity in Multiple Inheritance s Compiler will not be able to understand which function...

Ngày tải lên: 23/03/2014, 04:21

... 1 Introduction • Object- Oriented Programming (OOP) – Inheritance - form of software reusability • New classes created from existing ones • Absorb attributes and behaviors, and add in their own ... Hall, Inc All rights reserved Relationship between Superclass Objects and Subclass Objects • Object of subclass – Can be treated as object of superclass • Reverse not true – Suppose many classes ... member access – Relationships • "is a" - inheritance – Object of subclass "is a" object of the superclass • "has a" - composition – Object "has a" object of another class as a member – Class libraries...

Ngày tải lên: 31/03/2014, 20:20