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Java SE 1.5 introduced many new collection classes in the java.util.concurrent package.

The main classes.

• Abstract Collection <<Collection>>
  • AbstractQueue <<Queue>>
    • ArrayBlockingQueue <<BlockingQueue>>
    • ConcurrentLinkedQueue
    • DelayQueue <<BlockingQueue>>
    • LinkedBlockingDeque <<BlockingQueue>>
    • LinkedBlockingQueue <<BlockingQueue>>
    • PriorityBlockingQueue <<BlockingQueue>>
    • SynchronousQueue <<BlockingQueue>>
  • AbstractSet <<Set>>
    • ConcurrentSkipListSet <<NavigableSet>>
    • CopyOnWriteArraySet
  • ArrayDeque <<Deque>>


• AbstractMap <<Map>>
  • ConcurrentHashMap <<ConcurrentMap>>
  • ConcurrentSkipListMap
  • ConcurrentNavigableMap


• CopyOnWriteArrayList <<List, RandomAccess>>

Key Interfaces and their main methods

<<BlockingQueue>>	put() take() offer() poll()
<<ConcurrentMap>>	putIfAbsent() replace() remove()
<<RandomAccess>>	* a marker interface to indicate fast (generally constant) random access