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Tips and Tutorials

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Tips and Tutorials

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User interface logic in use case modeling


This article leads you into the gray zone between modeling and method, with a look at requirements gathering via use case modeling. In particular, this article focuses on the relationship between user interfaces, system interfaces, and use case descriptions.
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Diagnosing Java Code: The Liar View bug pattern


GUIs are generally designed with a model-view-controller architecture in which the view is decoupled from the model. The separation presents a challenge to automated testing because it's difficult to verify that a state change in the model is reflected appropriately in the view -- it spawns the infa
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Java 101 - An introduction to Java


This free tutorial series teaches the basics of Java programming. It requires no previous Java experience, and is perfect for the beginner. Tutorials cover a wide range of topics, from applets and applications, to more advanced issues such as class design, event handling and networking.
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  Rated 3.33 out of 5 MORE DETAILS

Swing's new Spinner component


This new column offers a glimpse into the new Java 1.4 release, starting with the new jSpinner component of Swing, which lets users easily select a date, number, or choice from a pick list. Article includes code snipets.
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ZipServlet


This article aims at presenting how to create a servlet that sends a zip file to the user.
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  Rated 2.67 out of 5 MORE DETAILS

Accessing EJBs through firewalls


Ever try to write a J2EE application accessing EJBs across a firewall? It can be messy, and developers often must resort to all kinds of workarounds, none of them particularly "neat." Developers often write a servlet to intercept HTTP requests and delegate them to EJBs, which is kind of a
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Portlets with FacesClient Components


Web apps developed with the thin client computing model exhibit performance gaps and user interface limitations. As an alternative, the IBM FacesClient Components (formerly called the Odyssey Browser Framework) provides a more effective model for developing Web apps. FacesClient Components work insi
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The Jxta command shell


Project Jxta is a community-run attempt to build a utility application substrate for peer-to-peer applications. The initial reference implementation of Jxta includes a command-line shell that allows experimentation with the core Jxta platform without programming. This article takes us through a hand
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Simplest Multiple Column Sorting (Up & Down) in JSP


This is the simplest and fastest code that shows how to implement multiple-column table sorting in JSP (Sort Ascending & Sort Descending). Excellent for JSP Database beginers Author: Tanwani Anyangwe
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  Rated 3.67 out of 5 MORE DETAILS

Java Online Course


Easy to follow, visual presentation of many of the concepts you need to start programming in java such as fundamentals, syntax, basic packages, GUI with AWT/Swing/2Dapi, threads and networking. Includes example source code, quizzes and exercises.
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Getting started with the FMA and Jiro


If you're looking for a unique programming challenge, try your hand at building a management application for a distributed, cross-platform network. This article is the first in a three-part series that looks at how Sun Microsystems's Jiro technology and the Distributed Management Task Force's Web-Ba
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  Rated 3.50 out of 5 MORE DETAILS

WAP builds Java applications


If your company already relies on multitiered enterprise Java applications, then you may be closer to a wireless future than you think. By outlining a sample application, this article shows you how to connect your existing enterprise Java infrastructure to a wireless network with minimal investment
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Connecting MS Access Database with JDBC-OBDC Bridge Driver


Tutorials on using the JDBC-ODBC Bridge driver with MS Access database. Topics include creating MS Access database file; creating DSN for MS Access database files; inserting rows to and retrieving rows from Access database.
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Java 2 Micro Edition (J2ME) Application Development : MIDP Programming.


Sample chapter from "Java 2 Micro Edition (J2ME) Application Development" on Mobile Information Device Profile programming.
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  Rated 3.67 out of 5 MORE DETAILS

What is the difference between JDK and JRE


The "JDK" is the Java Development Kit. i.e., the JDK is bundle of software that you can use to develop Java based software. The "JRE" is the Java Runtime Environment. i.e., the JRE is an implementation of the Java Virtual Machine which actually executes Java programs.
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Simplest Database Sorting (Up & Down) in JSP


This is the simplest and fastest code that implements table sorting in JSP (Sort Ascending & Sort Descending). Excellent for JSP Database beginers
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  Rated 3.67 out of 5 MORE DETAILS

JSP Implicit and Session Objects


In this JPS tutorial, you will learn how to program using JSP, JSP expressions and Implicit Objects, JSP Session Object, methods of session object, getAttribute(String name), getAttributeNames and isNew().
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Java Examples - Learn Java Programming by Examples


Kode Java website provides beginners to Java programming some examples of how to use the Java API (Application Programming Interface) to develop an application. Learning by following some examples will hopefully decrease the amount of time needed to begin to code in Java.
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Explain garbage collection


Garbage collection is one of the most important feature of Java. Garbage collection is also called automatic memory management as JVM automatically removes the unused variables/objects (value is null) from the memory. User program can’t directly free the object from memory, instead it is the job o
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  Rated 3.43 out of 5 MORE DETAILS

Adding JRuby to your Java Toolbox


JRuby combines the object-oriented strength of Smalltalk, the expressiveness of Perl, and the flexibility of the Java class libraries into a single, efficient rapid development framework for the Java platform. In this third installment in the alt.lang.jre series, Michael Squillace and Barry Feigenba
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Demystifying Extreme Programming: Just-in-time design


People who aren't familiar with XP are bothered by the concept of just-in-time (JIT) design -- designing and implementing what you know you need right now and not worrying about future design issues until absolutely necessary. While this approach might seem unwise or even reckless, XP advocate Roy M
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  Rated 4.00 out of 5 MORE DETAILS

Best Practice with Expresso Framework


Why invent the wheel every time you develop an application in Java? Writing a J2EE web application is complicated enough; you would not write a linked list module in C++ every time you started a new project. You would rather use another person's implementation. The same reuse-idea surely applies to
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Swing Dev with TableModel Free framework


This article introduces the TableModel Free (TMF) framework which eliminates the need to use TableModels with Swing JTables. The TMF framework allows for more configurable JTables by moving all of table-specific data outside of the compiled code and into a configurable XML file. Framework developer
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  Rated 4.00 out of 5 MORE DETAILS

Java Servlets


In this 5-page tutorial, you'll learn how to write, compile, and serve a simple servlet. Also, includes other servlet-related resources.
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JSP Directive Tag and Scriptlet tag


In this JSP tutorial, you will learn about two types of Directive tag namely Include and Tag Lib and also Scriptlet tag used in Java Server Pages along with syntax, usage, example and explanation for each of the tag.
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Extending Ant to support interactive builds


Ant, from Jakarta project at the Apache Foundation, has become a de facto standard for building Java projects. You may already be using it to create automatic builds. It's easy enough to tailor those builds to your needs by customizing the build files; but what if you want to wait until run time to
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  Rated 3.67 out of 5 MORE DETAILS

What is Polymorphism


Polymorphism means any forms. In OOPS, it refers to the capability of objects to react differently to the same method. Polymorphism can be implemented in the Java language in the form of multiple methods having the same name. Java code uses a late-binding technique to support polymorphism; the meth
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How to Install and Use NetBeans for Java Development


In this guide, I will try to explain you how you can run examples for J2EE tutorials. There are many ways you can do this, here we will be using the examples in NetBeans IDE which is one of the most powerful open source Java integrated development environments available.
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  Rated 2.79 out of 5 MORE DETAILS

What do you understand by Synchronization


Synchronization is a process of controlling the access of shared resources by the multiple threads in such a manner that only one thread can access one resource at a time. In non synchronized multithreaded application, it is possible for one thread to modify a shared object while another thread is i
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  Rated 3.08 out of 5 MORE DETAILS

Wireless messaging with JXTA


Learn how to use JXTA technology to integrate thin Java 2 Platform, Micro Edition (J2ME) clients into enterprise-scale messaging applications by developing a set of classes that let you integrate J2ME clients into JMS (Java Message Service) applications running on Java 2 Platform, Enterprise Edition
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  Rated 2.67 out of 5 MORE DETAILS

Download SCEA 310-051 Free Exam Simulator


SCEA Practice 310-051 Free Exam Simulator which helps you to prepare for the exam. The Exam Simulator is a computer program designed to help you pass your examination on the first try. The Exam Simulator pinpoints your strengths and weaknesses by quizzing you with questions similar to those found o
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Derby (Java DB) JDBC Driver


This article provides tutorial notes on the JDBC driver for Java DB (Derby) produced by Apache. Topics include loading JDBC driver classes; connecting Derby Network Server; getting JDBC driver information; creating tables and running queries through the Derby JDBC driver.
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JTurtle


JTurtle is a free educational programming tutor. It uses Java Bean Shell as a scripting language. BeanShell is extremely easy to use for procedural programming, but it can also be used to teach Object Oriented programming as the full Java programming language is accessible. Notable Features: *
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  Rated 3.70 out of 5 MORE DETAILS

EJB exception handling


As J2EE has become the enterprise development platform of choice, more and more J2EE-based applications are going into production. One important component of the J2EE platform is the Enterprise JavaBeans (EJB) API. Together, J2EE and EJB technology offer many advantages, but with these advantages co
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Introducing the Reflexive User Interface Builder


The IBM Reflexive User Interface Builder (RIB), a new technology available from alphaWorks, is an application and toolkit for building and rendering Java AWT/Swing and Eclipse SWT GUIs. RIB specifies a flexible and easy-to-use XML markup language for describing Java GUIs and provides an engine for c
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Build your own Java-based supercomputer


If you've ever wanted to build your own supercomputer but have been held back by the demands of parallel programming in C, Pseudo Remote Threads is for you. This prize-winning Java programming model greatly simplifies parallel programming on clusters, bringing supercomputing out of the laboratory an
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  Rated 2.83 out of 5 MORE DETAILS

Java Queries


This is a complete library of java interview questions with detailed descriptive answeres.Visit http://java-queries.blogs pot.com and shrapen your java skills
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  Rated 2.75 out of 5 MORE DETAILS

Perl to Java regular expressions tutorial


This small tutorial is for those who are familiar with regular expressions in Perl and want to use them in Java too. I give some examples in Perl on the left side and their Java equivalents on the right side.
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  Rated 3.11 out of 5 MORE DETAILS

Introduction to WBEM and the CIM


This is a continuation of the three-part series on building resource management applications. It takes a look at the Web-Based Enterprise Management (WBEM) initiative. WBEM serves to standardize the description and use of managed resources in enterprise networks. Follow along as the author describes
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Working with preferences: the Preferences API Specification


The addition of the java.util.prefs package to Java 1.4 (through JSR 10) lets you manipulate user preference data and configuration data by providing you with access to an implementation-specific registry (for example, the Windows Registry on Windows platforms). This article introduces you to the Pr
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