What built-in collection interfaces in Java have you used in practice?

In Java, the following built-in interfaces are often used for working with collections:

• List — an ordered list of elements that allows duplicates. Examples of implementations: ArrayList, LinkedList.
• Set — a collection of unique elements without a specific order. Examples: HashSet, TreeSet.
• Map — a key-value mapping where keys are unique. Examples: HashMap, TreeMap.
• Queue — a queue supporting the order of element processing. Examples: LinkedList, PriorityQueue.

In practice, List is often used to store ordered data, Set for unique elements (e.g., for filtering duplicates), and Map for quick key-based lookup (e.g., data caching).