Flash provides programmatic access to collection data through the Collection and Iterator interfaces. The Collection interface lets you add, modify, and remove items in a collection. The Iterator interface allows you to loop through the items in a collection.

There are two scenarios in which to use the Collection and Iterator interfaces:

• Accessing collection information in a component class (AS) file
• Accessing collection items at runtime in a Flash application

Advanced developers can also create, populate, access, and delete collections programmatically; for more information, see Collection interface in ActionScript 2.0 Components Language Reference.