| contains/ containsKey | get | set/ put | add | remove | size | iteration ConcurrentSkipListMap | log(n) | log(n) | log(n) | log(n) | n | n | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HashMap ConcurrentHashMap Hashtable | 1 | 1 | 1 | 1 | 1 | n (of capacity, not size) LinkedHashMap | 1 | 1 | 1 | 1 | 1 | n (of size, not capacity) TreeMap | log(n) | log(n) | log(n) | log(n) | 1 | n ArrayList | n | 1 | 1 | 1 (amortized constant time)? | n | 1 | n | |||
| LinkedList | n | n | n | 1 | n (removal is 1 at either end of the list) | 1 | n | |||||||||||||||||||||
Version 1.1 last modified by Geoff Fortytwo on 14/11/2008 at 20:22
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