Access Your Stored Java Objects with the Iterator Design Pattern

Clean up clumsy and wasteful code with the iterator design pattern.

Soup-to-Nuts Application Management with JMX

Not just another time-eating "solution," JMX actually offers real application monitoring and manageability. Learn about the JMX architecture, the JMX API, and dig into some code.

NetBeans 6.1: Worth a Try

The new NetBeans IDE is like a Swiss Army knife; it offers many different tools, and youre almost guaranteed to find something you like or soon need.

Deliver On-the-Fly Mapping Services to Your Rich Desktop Java Application, Part 3

Learn how to build a rich client Java application that visualizes mapping data and examine how to keep current with the explosion of free mapping services without recompiling Java code.

NEW: ClockApplet

This simple component allows you to show the correct local time in a specified time zone for your Web page. The applet is free software, licensed under the GNU General Public License v1.0.

UPDATED: Moving Fractal Tree

The latest version of this mathematical fractal tree corrects a bug that made it disappear from screen when it was dragged it with certain mouses.

Good Old Starfield

A retro, 3D animation with a little rotation. Supported by Java 1.3.

UPDATED: World Clock

World Clock is java applet that show real time including daylight savings time in 74 major cities in all the world. New in version 1.2: a new look and 14 new cities added.

Reverse Complement

Reverse Complement is a simple applet that converts DNA or RNA sequences into three useful formats.

Chuck Norris Roundhouse Kicks JavaServer Faces
June 27, 2008 --
For a bit of Friday fun, read the following variations on those Chuck Norris emails--this time relating to Java. (Javalobby)

Top Ten Performance Problems and Their Solutions
June 26, 2008 --
Whether you're the developer or the user of a Java application you'd like to see running faster, here are the top ten tips to use. (Javalobby)

Is Open Source Good for the Java Developer?
June 23, 2008 --
Is this recent trend toward commercial open source good for open source software? Is it good for the Java developer? Is the utopian spirit of the open source movement about to get crushed by greed, profit seeking, and evil corporate maneuvering? (Java Developer's Journal)

What Does the Future Hold for the Java Language?
June 20, 2008 --
There seems to be a resurgence of the idea that virtual machines can do anything. Rather than focus on Java and what the language needs to move it forward, there is a lot of hoopla and fanfare about making JVMs to run Ruby, PHP, or other equally trendy languages--as well as technologies like Java FX, which itself abstracts programming to an even higher and utterly non-Java syntax. If this all occurs, what do we have left? (Java Developer's Journal)

Secrets of the Masters: Core Java Job Interview Questions
June 17, 2008 --
If you are planning to hit the job market, you may need to refresh some of the Java basic terms and techniques to prepare yourself for a technical interview. JDJ Enterprise Editor Yakov Fain offers thirty core Java questions that you might expect during the interviews. (Java Developer's Journal)

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Create a "Fog" Filter Using the RGBImageFilter Class The code in this tip shows you how to create a "fog" filter for an image using the RGBImageFilter class. Java ME User Interfaces: Do It with LWUIT! Java ME user interfaces are about to get an exciting boost with the early release of a new library and tool from Sun called LWUIT. Persisting Data in Your Windows Mobile Device Learn about the three methods of persisting data and which is the right one for your device. The Progress and Promise of Deep Zoom In its latest release alongside Silverlight 2 Beta 2, Deep Zoom Composer shifts to a more accessible XML format and offers better control of image quality. Those are just the latest improvements to a tool that's grown far more capable since its introduction back at MIX 08. Create a "Flea" Filter Using the RGBImageFilter Class This tip demonstrates how to build a "flea" filter based on the RGBImageFilter class. The filtered picture will look like the image displayed on old TVs. Leveraging Silverlight 2 with SQL Server and XML With Silverlight 2 now having a go-live license, you can begin to take advantage of all of its managed code features. In this application and walkthrough we show you how to utilize both a database and XML for your Silverlight 2 application. The JavaScript Hater's Guide to the NetBeans JavaScript Editor Writing and debugging JavaScript can be painful, but if you develop web applications, chances are that you'll be doing more and more of it. If this sounds like you, the latest version of NetBeans could be just what the doctor ordered. Obtain Class Methods Using Reflection Learn how to obtain all methods, all declared methods, and one specific method for the java.lang.reflect.Method class. Get Ready for Wicket 1.4's New Java 5 and Spring Features Wicket, the lightweight web application framework, has added Java 5 and Spring support with release 1.4-M1. Now you can reduce your Java web application code with generics, annotations, and dependency injection. Read an Image from a Database Using the getBinaryStream Method This following code shows you how to extract an image from a database using the getBinaryStream method.