Concepts that Allow Learning the Programming Language Rexx Much Faster than Other Languages

The open object Rexx (ooRexx) programming language has been successfully used to teach business administration students programming from scratch in a single semester. Students are able to interact with Windows and Microsoft Office, but also to use Java classes for programming OpenOffice/LibreOffice and JavaFX (GUIs) on all modern operating systems. A key factor in this is the design of the Rexx programming language, on which ooRexx is based. This article introduces the most important concepts of the language, which make it possible to learn programming faster than with other languages. In particular, concepts such as single data type, decimal arithmetic, instruction types and others are introduced and demonstrated with the help of examples.