27.3.16. Iterator Pattern

Try these first

1. 1.

   What is the primary purpose of the Iterator Pattern?

   Hint

   Think about why we want to hide the structure.

2. 2.

   Name one advantage of using the Iterator Pattern.

   Hint

   Consider how changing one part affects the other.

3. 3.

   What is the purpose of the Iterator Pattern?

   • To expose the inner workings of a collection
   • To provide a way to access elements sequentially
   • To modify the collection's structure

   Hint

   Focus on the order of access to the elements.

4. 4.

   True or False: The Iterator Pattern can be used to traverse any type of collection.

   • True
   • False

   Hint

   Consider the flexibility of the pattern.

5. 5.

   Implement a custom iterator for a to-do list application that allows adding and removing tasks during iteration without skipping any tasks.

   Hint

   Think about how you can maintain the index while iterating.

6. 6.

   Design a multi-threaded iterator that safely handles data access across concurrent processes. What safeguards would you include?

   Hint

   Consider locking mechanisms.