ThinkerQAQ

16.ConcurrentHashMap

Java · 2 notes

  1. 6.16 ConcurrentHashMap in JDK 1.7historical

    1. Constructor 2. put method 2.1. hash 2.2. ensureSegment 2.3. Segment.put 2.3.1. scanAndLockForPut 2.3.2. rehash 3. get 4. containsKey 5. remove 5.1. segmentForHash 5.2. Segment.remove

  2. 6.29 ConcurrentHashMap in JDK 1.8historical

    1. What it is. A thread-safe HashMap implemented with synchronized + CAS + the HashMap structure (array + linked list + red-black tree). 2. How to use it. 3. Principle analysis: constructor, Node, put, initialization, insertion, resizing, get, remove, and containsKey.