Java is the hot new programming language for the nineties and beyond and for developing a whole new category of Internet aware applications. NetRexx 'improves' upon Java by blending the best features of classic REXX with the object model and semantics of Java and the Java Virtual Machine execution environment. Together, these languages provide powerful new tools for enabling VM/ESA systems to fully participate on both the Internet and on organizations' internal 'intra-nets'. Coupled with the new IBM Network Station, VM/ESA can now provide a powerful solution for bringing network aware applications to large numbers of simultaneous users in a very cost effective manner. This redbook describes how to install and configure both Java and NetRexx using the IBM provided installation files and scripts. It also covers a selection of VM tools that make using NetRexx and Java easier and less trouble-prone to the applications developer. There is a detailed comparison of NetRexx to classic REXX to help guide VM/REXX programmers through the similarities and differences and introduce them to the novel capabilities of NetRexx. Also included are hints and tips on good NetRexx design and a wealth of examples of NetRexx application programming techniques in the CMS environment. The book culminates with a complete demonstration application, comprised of a multithreaded CMS server written entirely in NetRexx and a graphical client, written in a mixture of NetRexx and Java, that may be run on IBM Network St

NetRexx is a new human-oriented language that makes writing and using Java classes quicker and easier than writing in Java. NetRexx combines the ease of use and flexibility of Rexx with the robust structure and portability of Java. This redbook covers all aspects of NetRexx, from simple scripting programs to applications and applets using such advanced features as graphical user interfaces with animation, access to relational databases, communication over TCP/IP sockets, client/server programming using remote method invocation (RMI), Common Gateway Interface (CGI) programming, and JavaBeans. The sample programs are freely available on the Internet. This redbook applies to NetRexx Version 1.0 and 1.1, and the Java Development Kit (JDK) Version 1.1.1. The sample programs were tested on Windows 95, Windows NT, and OS/2 Warp; they should also run on other platforms that support JDK 1.1.

This document describes OS/2 REXX from a usage and application scenario basis. It includes OS/2 REXX interfaces to CM/2, DB2/2 and MMPM/2. This document is intended for IBM system engineers, IBM technical advisors, IBM authorized dealers, IBM customers and others who require a knowledge of OS/2 2.1 REXX and its interfaces. A working knowledge of OS/2 2.1 and REXX is assumed.