27.3.8. Composite Pattern

Try these first

1. 1.

   What is the purpose of the Composite Pattern?

   Hint

   Think about how components are organized.

2. 2.

   Name a scenario where the Composite Pattern might be used.

   Hint

   Consider hierarchical structures you encounter daily.

3. 3.

   What does the Composite Pattern primarily deal with?

   • Creating objects
   • Part-whole hierarchies
   • Singleton instances

   Hint

   Focus on what this pattern is designed to organize.

4. 4.

   True or False: A Leaf Node can contain other nodes.

   • True
   • False

   Hint

   Consider the definition of a leaf.

5. 5.

   Create a class structure for a graphic design application using the Composite Pattern that supports layers, shape groups, and individual shapes.

   Hint

   Think about how each layer can contain both individual shapes and other layers.

6. 6.

   Design a menu system for an application that allows adding and removing menu items dynamically using the Composite Pattern. Describe how you'd implement the classes.

   Hint

   Consider operations for adding/removing items and how they reflect in the menu structure.