Performance - Inefficient use of keySet iterator instead of entrySet iterator

标签：trie   more   get   from   tor   rman   using   method   value   

This method accesses the value of a Map entry, using a key that was retrieved from a keySet iterator. It is more efficient to use an iterator on the entrySet of the map, to avoid the Map.get(key) lookup.

Performance - Inefficient use of keySet iterator instead of entrySet iterator

标签：trie   more   get   from   tor   rman   using   method   value   

原文地址：http://www.cnblogs.com/winner-0715/p/7210606.html