Java

Java is an interpreted, concurrent and object-oriented programming language originally designed to be highly portable, as such it can be thought of and indeed is frequently used as much as a platform on its own as a programming language.

Java virtual machines and compilers for OS/2

• IBM Java - VM Supplied with IBM's OS/2 and as an optional install with eComStation. Outdated but fast.
• Golden Code J2SE for OS/2 - Commercial VM - Discontinued
• InnoTek Java
• Jikes - Java bytecode compiler. Fast - Open Source - Discontinued
• Odin + OpenJDK

Add-on's and libraries

• LZ4 - Compression library - Open source - Current
• NetRexx - Scripting language - Current.
• Snappy - Compression lib. - Open Source - Current.

Foreign libraries with Java bindings

• e_Db - Library for C & C++, also has Java API's/bindings - Commercial - Discontinued.
• LZ4 - Compression library with 3d party JNI bindings - Open source - Current
• Snappy - Compression lib. - Open Source - Current.

Utilities and test software

• Mauve - Java CLass Library test suite - Open Source - Current.

Text & programmers editors with Java support

• Boxer - Java syntax highlighting support built in - Commercial - DOS and OS/2 versions discontinued, Win32 version still sold.
• Elvis - Java syntax support included by default - Open source - Current.
• Enhanced Editor - Has Java syntax highlighting built in with some auto-formatting features.

Publications

Tutorials and other learning material

• https://docs.oracle.com/javase/tutorial/ - Introductory Java tutorials from Oracle Corp.

Links

• Joop Nijenhuis's Java for OS/2 page - Fairly up to date page that lists Java apps tested with eCS
• DZone's Java Page - Lots of Java links and info
• Russ Harvey Consulting's Java page - Lots of info both for OS/2 and other OS's.

USENET

• comp.lang.java.programmer - Unmoderated java discussion group - Go to the Google groups version if your ISP does not offer USENET access or you are in any other way newsgroup challenged.