Unit 7: ArrayLists

  • Explores the ArrayList class, a dynamic array implementation.
  • Discusses methods for adding, removing, and accessing elements (add(), remove(), get()).
  • Introduces the concept of dynamic resizing, unlike fixed-size arrays.
  • Covers iterating through ArrayList with for loops and enhanced for loops.
  • Discusses ArrayList methods for searching (contains(), indexOf()).
  • Introduces wrapper classes for storing primitive types (e.g., Integer for int).


Connections to PBL:

  • In the back-end, ArrayLists are often used to manage dynamic collections of objects, such as processing orders that grow over time.
  • Front-end can use array-like structures to dynamically render UI components based on user interactions (e.g., a dynamic shopping cart).
  • APIs might return lists of data as ArrayList (e.g., fetching a list of users or products).

Link back to the Team Teach Lesson itself: Unit 7 Team Teach