The Stem Class

A Stem object is a collection with unique indexes that are character strings.

A stem variable is a symbol that must start with a letter and end with a period, like " FRED." or "A.". The value of a stem variable is a Stem object. A Stem object is a collection of unique character string indexes. Stem objects are automatically created when a Rexx Stem variable or Rexx compound variable is used. In addition to the items assigned to the collection indexes, a Stem object also has a default value that is used for all uninitialized indexes of the collection.

The class Stem subclasses (specializes) The Object Class and inherits (specializes) in addition: