Queue
https://docs.oracle.com/javase/7/docs/api/java/util/Queue.html
- collection
- Iterable
- "Queue" is an interface, to construct it usually from LinkedList, PriorityQueue...
operation | Throws exception | Returns special value | Return type |
---|---|---|---|
Insert | add() | offer() | boolean |
Remove | remove() | poll() | E (return the head of this queue |
Examine | element() | peek() | E (the head of this queue) |