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NetRexx is a dialect of the REXX programming language to run on the Java virtual machine. It supports a classic REXX syntax, with no reserved keywords, along with considerable additions to support object-oriented programming in a manner compatible with Java's object model, yet can be used as both a compiled and an interpreted language, with an option of using only data types native to the JVM or the NetRexx runtime package. Originally from IBM, NetRexx is the creation of Mike Cowlishaw, the 'Father of Rexx'. This IBM product has been open sourced in 2011.

Features

Part of the Rexx family of languages
Runs on the JVM
Generates .class files from NetRexx source
Fast, portable and friendly
Implements CMS Pipelines

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License

Common Public License 1.0

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NetRexx Web Site

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abuajamieh Posted 2026-11-08

5 out of 5 stars

NetRexx is Rexx on the JVM, and it keeps what made Rexx worth using: code that reads like plain English, decimal arithmetic that gives the answer you expect, and parse, which makes short work of text. It compiles to ordinary Java classes, uses any Java library directly, and can also run a program straight from source, which makes trying ideas quick. Pipelines, built in, is a gem: small stages joined into a pipeline, a way of working nothing else on the JVM offers. It is a small project, and you notice it in places: some corners are rough, and the documentation does not always keep up with the code. The maintainers make up for it. Reports with a clear example are answered quickly, often fixed within days, and contributions are welcome. I have reported a fair number of bugs and had several fixes merged, and every exchange has been friendly and to the point. Recommended for anyone who wants Java's reach without Java's ceremony.
thsitc1 Edited 2020-05-15

5 out of 5 stars

NetRexx is the best Language and the best Compiler I've ever seen in my own - quite long - EDP and IT History. I am working since 1964 in IT, starting as a student at the technical university here in Vienna, shortly called TU, and then at IBM as a volunteer programming in RPG I, and then PL/I. Concurrently, I did start at GEISCO (General Electric Information Services Company) on their Mark I System, using BASIC, and then the successor of Mark I, named Mark III, programming there in Fortran 77. There I have been the Author of EURO:LOGOS, an SQL-like Database INQUIRY-langauage, and of EURO:ARCHIV, somewhat a predecessor of SVN and Git, as well. Ok, before I do tell You my whole IT-Experience, I would like to stop for now. Give NetRexx (see www.Netrexx.org) a try. It does generate Java Code, as well as allowing You to use any Java class. It is, essentially, a blend of Rexx (see www.RexxLA.org) and and Java, (see www.NetRexx.org) and has been invented by Mike F. Cowlishaw, the father of 'classic Rexx', as well, a former IBM employee. Kind regards, [email protected]

1 user found this review helpful.

Additional Project Details

Operating Systems

Android, BSD, FreeBSD, Linux, Mac, NetBSD, OpenBSD, Server Operating Systems, Solaris, Windows

Intended Audience

Developers

User Interface

Command-line, Console/Terminal, Java AWT, Java Swing, Java SWT, OpenGL, Web-based

Programming Language

Rexx

Database Environment

JDBC

Related Categories

Rexx Programming Languages

Registered

2016-10-06

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