Java Archive

Using Java Platform Management Beans

Submitted by anonymous 2006-04-21 Java 2 Comments

"The latest release of the Java platform includes a number of new system monitoring and management features. In this article, three developers from the IBM Java Technology Centre team up to get you started using this API. After a quick overview of the java.lang.management package, they guide you through a number of short practical scenarios to probe the performance of a running JVM."

Migrate a JSP-Eclipse Apps to Lightweight Ajax

Eugenia Loli 2006-04-19 Java 7 Comments

This tutorial shows you how to move an application from a conventional JSP, Eclipse design to one based on Ajax (Asynchronous JavaScript and XML) technology. It will guide you through the development of a small human-resources application, first using conventional JavaServer Pages (JSP) and Eclipse, and then migrating it to a highly interactive solution using Ajax.

A Tutorial Introduction to Full-Text Indexing in Java

Eugenia Loli 2006-04-16 Java 2 Comments

John Smart provides a quick intro to Lucene, a powerful and elegant library for full-text indexing and searching in Java, with which you can add rich full-text search functionality to your Java web application.

A Look at GCJ 4.1

Eugenia Loli 2006-04-16 Java 9 Comments

One of the components of the GNU Compiler Collection (GCC) is GCJ, the GNU Compiler for the Java programming language. GCJ is a compiler that can generate both native code and bytecode from Java source files. GCJ includes a runtime library (libgcj) that provides all runtime support, the core class libraries, a garbage collector, and a bytecode interpreter. Programs created by gcj can dynamically load and interpret class files or native shared libraries resulting in pure, or mixed native/interpreted apps.

Sun-Approved Open Source Java Making Progress

Thom Holwerda 2006-04-02 Java 38 Comments

The community effort hosted by the Apache Software Foundation to create an open source, J2SE 5.0 compatible Java runtime/virtual machine is progressing slowly but steadily. Despite some indifference and prejudice by some OSS pundits, the project has been recently moving along nicely with key players like Intel and IBM contributing their own programmers and source code to the effort.

Kaffe 1.1.7 released

Submitted by djinn 2006-03-30 Java 12 Comments

A new version of Kaffe has been released. Kaffe is a clean room implementation of the Java virtual machine, plus the associated class libraries needed to provide a Java runtime environment. The Kaffe virtual machine is free software, licensed under the terms of the GNU General Public License. Some benchmarks are available too.

Mustang (1.6) Vs Tiger (1.5) Java Virtual Machine Comparison

Submitted by Jean-Marie Dautelle 2006-03-24 Java 27 Comments

The first benchmark of Mustang (JDK1.6) versus Tiger (JDK1.5) shows that Java users are up for an agreeable surprise. According to this JavaLobby discussion the virtual machine raw speed has improved significantly (40-100%). Although, the core library implementation (e.g. collections) could also benefit from some rework/optimizations.

Java Theory and Practice: Good Housekeeping Practices

Submitted by anonymous 2006-03-22 Java 6 Comments

"Putting your toys away when you are done is always a drag, but if you dont take the time to do it, you would have a huge mess over time. Garbage collection does an awful lot of the cleanup for us, and it simplifies development and eliminates entire categories of potential code errors, but some java resources still require explicit action on our part. This article discusses the limitations of garbage collection and identifies situations when you have to do your own housecleaning."

Building a JNI Universal Application with Xcode

Submitted by Hakime 2006-03-21 Java No Comments

"The Java Native Interface lets developers mix Java code with C or C++ source code. It provides access to platform-specific features that Java does not provide, so that Java applications on Mac OS X can take advantage of the wide range of powerful Apple-only technologies to provide the best possible user experience. Using the JNI, your Java application can access a user's Address Book, make Spotlight queries, take advantage of Core Image and Core Video, and leverage many other rich features unique to Mac OS X. This step-by-step tutorial explains how to use the JNI to integrate Java and C code using a single Xcode project with multiple targets."

Crafting Java with Test-Driven Development, Part 7: Adding Some Bulk

Eugenia Loli 2006-03-20 Java No Comments

Jeff Langr's poker application has come a long way in the last few installments of this series. In this segment, he adds the first set of code for handling some of those specialized poker terms you've might recognize from TV: the flop, the turn, the river, and the blinds.

Intro to the Eclipse Communication Framework

Eugenia Loli 2006-03-18 Java No Comments

The Eclipse Communication Framework (ECF) is a new Eclipse project devoted to providing an open source framework supporting the creation of communications-based applications on the Eclipse platform. This article gives gives you a quick glimpse into ECF and an example that demonstrated one of the many capabilities the framework provides, and its future direction.

Build Your Own Profiling Tool

Submitted by anonymous 2006-03-14 Java No Comments

"Profiling is a technique for measuring where software programs consume resources, including CPU time and memory. In this article, software architect Andrew Wilcox explains the benefits of profiling and introduces some current profiling options and their shortcomings. He then shows you how to use the new Java 5 agent interface and simple aspect-oriented programming techniques to build your own profiler."

Better Code Testing with JUnit and FIT

Eugenia Loli 2006-03-13 Java 1 Comment

The beauty of Framework for Integrated Tests (FIT) is that it enables the customer or business side of an organization to get involved in the testing process early (i.e., during development). Whereas JUnit's strength lies in unit testing during the coding process. This article shows you how to combine the best of FIT and JUnit for better teamwork and effective end-to-end testing.

Java with Test-Driven Development, Part 6: Refactoring Tests

Eugenia Loli 2006-03-12 Java 1 Comment

With the support mechanisms in place and well-tested, Jeff Langr's poker game seems to have reached the point that developers like best: banging out the code. But even at this point, he's careful to focus on test-driving classes into existence. Read more at InformIT's article.

Multi-Platform Java GUI 3D Programming System 1.1

Submitted by anonymous 2006-03-09 Java No Comments

"Real Interfaces Visualizer technology is an easy-to-use GUI multi-platform system for Java programmers to assemble and manage complex, interaction-enabled, three-dimensional user interfaces. Version 1.1 includes addition of support for nested matrices along with the capability of cell spanning in all three directions."

What Is Java?

Submitted by kmarius 2006-03-09 Java 25 Comments

"We recently received an email asking for a 'What Is Java' entry on the O'Reilly Network What Is site. Who could possibly not know what Java is in 2006? After ten years of books, websites, and conferences, doesn't everyone know what Java is? Apparently not. After all, things have changed. For every dusty definition that speaks of applets and Just-In-Time compilers, there are new directions and new realities that have settled in, understood by many, yet not always completely documented."

Crossing borders: Exploring Active Record

Submitted by anonymous 2006-03-08 Java 5 Comments

"The Java programming language has had an unprecedented run of success for vendors, customers, and the industry at large. But no programming language is a perfect fit for every job. This article launches a new series by Bruce Tate that looks at ways other languages solve major problems and what those solutions mean to Java developers. He first explores Active Record, the persistence engine behind Ruby on Rails. Active Record bucks many Java conventions, from the typical configuration mechanisms to fundamental architectural choices. The result is a framework that embraces radical compromises and fosters radical productivity."

GNU Classpath 0.90 “A La Mort Subite” Released

Submitted by Mark Wielaard 2006-03-07 Java 17 Comments

GNU Classpath 0.90 "A La Mort Subite" has been released. Some highlights of this release: JTables can be rearranged and resized. Free Swing text components support highlighting and clipboard. Much improved styled text. Fast event dispatching and lower memory consumption. Better support for mixing lightweight and heavyweight components in AWT containers. GNU Crypto and Jessie cryptographic algorithms have been added providing ssl3/tls1 and https support. Unicode 4.0.0 support. GIOP and RMI stub and tie source code tools. XML validaton support for RELAX NG and W3C XML schemas. New file backend for util.prefs. Updated gnu.regexp from POSIX to util.regex syntax.

SWT, Swing, AWT: Which Is Right for You?

Submitted by anonymous 2006-02-25 Java 25 Comments

"Why is there more than one Java GUI tool kit? The best answer is that one size does not fit all, nor is there a one-size-fits-all GUI tool kit to be invented soon. Each tool kit offers advantages and disadvantages that make selecting one more appropriate, given your needs and intended audience. Read descriptions of each tool kit's basic features, and the pros and cons of using each."

Facelets Fits JSF Like a Glove

Submitted by anonymous 2006-02-24 Java 9 Comments

"Trying to combine JSF and JSP is like trying to shoehorn a foot into a glove: it's possible, but it's really just a stopgap measure until something better comes along. In this article, JSF enthusiast Rick Hightower introduces you to what he likes best about Facelets: easy HTML-style templating and reusable composition components."