Classes and Interfaces

Lecture Java programming language: Inheritance and Polymorphism has main content such as Object-Oriented programming, extending a class, implementing a subclass, polymorphism, abstract classes, interfaces.

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Identify the product whose software requirements are specified in this document, including the revision or release number. Describe the scope of the product that is covered by this SRS, particularly if this SRS describes only part of the system or a single subsystem.

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The unit in procedural programming is function, and unit in object-oriented programming is class Procedural programming concentrates on creating functions, while object-oriented programming starts from isolating the classes, and then look for the methods inside them. Procedural programming separates the data of the program from the operations that manipulate the data, while object-oriented programming focus on both of them

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The Java standard APIs are shown in HTML output at http://java.sun.com/j2se/1.4.2/docs/api/index.html. It’s generated from the documentation comments (doc comments). Documentation comments are special comments in the source code that are delimited by the /** ... */ delimiters. The JDK contains a tool named javadoc to generate HTML documentation from documentation comments in your source file. The javadoc utility extracts information for the following items Public classes and interfaces Public and protected methods Public and protected fields Packages...

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Manipulating URLs URL is an acronym for Uniform Resource Locator and is a reference (an address) to a resource on the Internet. Sample structure of a URL. The resource name part may contain: host name, file

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To Make an Interactive GUI Program To make an interactive GUI program, you need: Components buttons, windows, menus, etc. Events mouse clicked, window closed, button clicked, etc. Event listeners (interfaces) and event handlers (methods) listen for events to be trigged, and then perform actions to handle them

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A collection is a data structure – actually, an object – to hold other objects, which let you store and organize objects in useful ways for efficient access Check out the java.util package! Lots of interfaces and classes providing a general collection framework. Programmers may also provide implementations specific to their own requirements

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An interface is a way to describe what classes should do, without specifying how they should do it. It’s not a class but a set of requirements for classes that want to conform to the interface E.g. public interface Comparable { int compareTo(Object otherObject); } this requires that any class implementing the Comparable interface contains a compareTo method, and this method must take an Object parameter and return an integer

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Procedural vs. Object-Oriented Programming The unit in procedural programming is function, and unit in object-oriented programming is class Procedural programming concentrates on creating functions, while object-oriented programming starts from isolating the classes, and then look for the methods inside them. Procedural programming separates the data of the program from the operations that manipulate the data,

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Developed by Sun Microsystems (James Gosling) A general-purpose object-oriented language Based on C/C++ Designed for easy Web/Internet applications Widespread acceptance Simple fixes some clumsy features of C++ no pointers automatic garbage collection rich pre-defined class library Object oriented focus on the data (objects) and methods manipulating the data all functions are associated with objects almost all data types are objects (files, strings, etc.) potentially better code organization and reuse...

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A java application can run inside a JVM and can only invoke the methods of the classes available inside this JVM • Distributed computing or processing resolves around clientserver technology where several client programs communicate with one or more server applications.An RMI application has to expose methods, which remote clients can invoke. • These methods which are meant to be remote, should be defined in an interface which extends the java.rmi.Remote interface

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Once the SRS has been approved, implementation begins. Programming teams have many options: The programmers can simply start building the code and create the objects and user interface elements. Designers can build a user interface prototype to demonstrate to the users, stakeholders and the rest of the team. Any code used to develop the prototype is typically thrown away once the design has been finalized. Pictures, flow charts, data flow diagrams, database design diagrams and other visual tools can be used to determine aspects of the design and architecture.

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IMSQTIBasicObjects: là nơi định nghĩa và cài đặt tất cả các class nằm trong đặc tả IMS Question and Test Interoperability, trừ các class phụ thuộc từng câu hỏi là các class interaction cụ thể của từng loại câu hỏi và các class mô tả các phương án trả lời. Hình 4-5 Sơ đồ lớp phần IMSQTIBasicObject của Engine ETSEngineControllerObjects: phần này định nghĩa và cài đặt tất cả các class liên quan đến xử lý chung cho hệ thống.

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Tạo ứng dụng để tính toán thu nhập cho các cầu thủ bong chày. Ứng dụng gồm các lớp sau: Player: • Abstract class • Thuộc tính: Tên cầu thủ • Constructor: gán giá

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PHP Objects, Patterns, and Practice- P12: This book takes you beyond the PHP basics to the enterprise development practices used by professional programmers. Updated for PHP 5.3 with new sections on closures, namespaces, and continuous integration, this edition will teach you about object features such as abstract classes, reflection, interfaces, and error handling. You’ll also discover object tools to help you learn more about your classes, objects, and methods.

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[ Team LiB ] A.5 Class, Structure, and Interface Members Classes, structures, and interfaces can contain one or more fields, methods, properties, and events. This section discusses converting the C# syntax for each of these constructs to Visual Basic

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Java Programming Style Guidelines Seite 1 von 13 Java Java Programming Style Guidelines Version 3.5, January 2004 Geotechnical Software Services Copyright © 1998-2004 This document is available at http://geosoft.no/javastyle.html Table of Content l l l l l l l 1 Introduction ¡ 1.1 Layout of the Recommendations ¡ 1.2 Recommendations Importance 2 General Recommendations 3 Naming Conventions ¡ 3.1 General Naming Conventions ¡ 3.2 Specific naming Conventions 4 Files 5 Statements ¡ 5.1 Package and Import Statements ¡ 5.2 Classes and Interfaces ¡ 5.3 Methods ¡ 5.4 Types ¡ 5.

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