4.3. Overview of Classes Provided by Rexx

This section gives a brief overview of the classes and methods Rexx defines.

4.3.1. The Class Hierarchy

Rexx provides the following classes belonging to the object class:

Alarm class
Array class
Class class
Collection class
- MapCollection class
- OrderedCollection class
- SetCollection class
Comparable class
Orderable class
Comparator class
- CaselessColumnComparator class
- CaselessComparator class
- CaselessDescendingComparator class
- ColumnComparator class
- DescendingComparator class
- InvertingComparator class
- NumericComparator class
DateTime class
Directory class
- Properties class
File class
InputOutputStream class
- Stream class
InputStream class
List class
Message class
Method class
Monitor class
Routine class
MutableBuffer class
OutputStream class
Package class
Queue class
- CircularQueue class
RegularExpression class
Relation class
- Bag class
RexxQueue class
Stem class
String class
Supplier class
- StreamSupplier class
Table class
- Set class
IdentityTable class
TimeSpan class
WeakReference class
RexxContext class
Buffer class
Pointer class
StackFrame class

(The classes are in a class hierarchy with subclasses indented below their superclasses.)

Note that there might also be other classes in the system, depending on the operating system. Additional classes may be accessed by using an appropriate ::requires directive to load the class definitions.

The following figures show Rexx built-in classes.