Java

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Data Analysis

  • The Apache Commons Mathematics Library: According to the website, this is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.
  • The Object Refinery: Free Java software for financial and general data analysis.

Microsoft® Excel - Reading / Writing APIs

  • Apache POI: Java API to access Microsoft Format Files. For example, you can read and write an Excel file in Java using these libraries.
  • Java Excel API: An open-source library (Lesser General Public License) that enables developers to manipulate Excel spreadsheets.

 

Ask The Experts: Transcripts of experts discussing various Java topics.

Core Java Technologies Tech Tips: Site for a variety of technical tips from Sun.

Java Archives: Location for archived Java Runtime Environments.

Java Code Samples & Apps: Java sample code.

Java Documentation: Sun's documentation on Java.

Java examples (example source code): Source code examples (we can't find their license terms, though).

Java look and feel Graphics Repository: Collection of toolbar button graphics that conform to the Java look and feel.

Java Practices: Examples of Java programs.

Java Technical Articles and Tips: Technical articles from Sun.

Java Technology Forums: Sun's forums relating to Java.

Java Technology XML: Sun site for XML information.

Java Tips: An interesting site for Java tips and examples.

The Java Tutorial: Sun's practical guide for programmers.

Java Web Start: Sun's documentation on Java Web Start.

Java Web Start and Code Signing: Article on using Java Web Start and applying those security certificates.

Java Web Start Demos: Sun's web page that demonstrates Java Web Start.

Javalobby: Java news, discussions, books, downloads and knowledge.

JavaRanch: Forums for Java programmers.

JavaWorld: Site with Java information.

Just Java: Site for Java information.

Lopica: Site for Web Start information.

Magic with Merlin: Articles designed for Java 2 Standard Edition, version 1.4.

On Java.com™: Independent source for enterprise Java.

Processing XML with Java: Online book for XML.

Real's How-To: Examples for Java, Javascript, PowerBuilder and more.

Signing JARs for Java Web Start: Another article on signing jars using Thawte's personal email certificates.

Sun Packages: Information on using Sun packages in Java programs.

XOM: Information on XOM, the new XML API written in Java under the GNU Lesser General Public License.