Multiple choice

MARY is writing a Forms application, and plans to include a Hierarchical Tree Item. What should she do to facilitate this functionality?

  1. Write Java wrapper classes to integrate the Hierarchical Tree item into Forms.

  2. Add a special layer of Java code to register the properties and methods of the Hierarchical Tree Item.

  3. Use the FTree PL/SQL Package and its built-ins to register and invoke the Hierarchical Tree Item.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oracle Forms provides the FTree PL/SQL package specifically for working with Hierarchical Tree items. This package includes built-ins like ADD_TREE_DATA, DELETE_TREE_NODE, and SET_TREE_PROPERTY to register, populate, and manipulate hierarchical trees. Options A and B incorrectly suggest writing Java code - Forms has native PL/SQL support for tree items without requiring Java wrappers or additional layers.

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