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 for OS/2

• IBM Java
• Golden Code J2SE for OS/2
• InnoTek Java
• Odin + OpenJDK

Add-on's and libraries

• 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.
• Snappy - Compression lib. - 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.

Tutorials and other learning material

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