coding, by Derek Young: Correct use of ConcurrentHashMap

Correct use of ConcurrentHashMap Monday January 7, 2008 by Derek Young ConcurrentHashMap has been pitched as a simple alternative for HashMap, eliminating the need for a synchronized blocks. I had some simple event counting code that created count records on the fly. Although I could have used synchronized blocks for safety I used ConcurrentHashMap for this situation, partly for efficiency but mo

[teppeis]

ConcurrentHashMap

[bobbyjam99]

ConcurrentHashMapの正しい使い方の話．putIfAbsentメソッドを使えー．

[smotokezuru]

ConcurrentHashMapの正しい使い方

[twainy]

ConcurrentHashMapの使い方

[jusuke]

データ追加のときにputIfAbsentをつかう

[kazukiy]

うん、まぁ理解している内容と大差なかったわ