Just likeHashMap,LinkedHashMapperforms the basicMapoperations of add, remove and contains in constant-time, as long as the hash function is well-dimensioned. It also accepts a null key as well as null values. H
1. Map Overview There are 4 commonly used implementations of Map in Java SE - HashMap, TreeMap, Hashtable and LinkedHashMap. If we use one sentence to describe each implementation, it would be the following: HashMap is implemented as a hash table, and there is no ordering on keys or ...
But I've gotten far more efficient at it. I start out now by replacing all the relevant new HashMap'()s with new LinkedHashMap(), A large percentage of the time, it suddenly becomes reproducible. The rest of the time, it's a thread synchronization problem, or occasionally an external ...