Rexx-Fundamentals

Hello World in REXX

Every programming journey starts with Hello World. REXX makes this incredibly simple—the language was designed from day one to be readable and intuitive.

The Code

Create a file named hello.rexx:

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Variables and Types in REXX

REXX takes a radically different approach to variables and types than most modern languages. There are no type declarations, no reserved keywords for allocating memory, and no “int” vs …

Operators in REXX

Operators are the verbs of arithmetic and logic—they combine values into expressions that produce new values. REXX, an imperative and procedural language with dynamic, typeless data, treats every …