JADE is an advanced software platform that has an
integrated software development environment, a language, an object manager,
and a high performance database.
Membership and Keys
MemberKeyDictionary subclasses provide rapid access
to collection objects by specifying a key value(s) that is a property
of the object.
We must specify the type of object to be collected (Book)
and the key (title).
Instructions
On the Membership tab, select Book as the membership.
On the Keys tab, select title as the key, check the
Case Insensitive box and click the Add button.
Check the Duplicates Allowed box and click the OK button.
A collection can now contain books with the same title
(perhaps with different editions or authors).