Additional Notes
Why might a Map be more suitable than a List?
Track: Java
Topic: Collections
Focus: Map Interface and HashMap
Java: Map Interface and HashMap
Answer
Maps communicate key-based access, Lists are index-based.
When your data naturally pairs objects, like IDs to objects, a Map provides clearer intent. A List is better for ordered collections accessed by position. For example, a customer ID and their order history would be better suited to a Map.
When your data naturally pairs objects, like IDs to objects, a Map provides clearer intent. A List is better for ordered collections accessed by position. For example, a customer ID and their order history would be better suited to a Map.
Topics: Collections Java Map Interface and HashMap