Java – in general, when any one works, which is better, a HashMap or a hash table?

I occasionally use hash tables in several languages, but I encounter Java maps while browsing some code I checked the difference in this so question, which shows that it is very clear My question is:

>When any one can work for you, which is better? If you don't handle null values / threads, which one should you choose? > Which is more often used / more standard?

Solution

>If any of them is suitable for you, I will use HashMap because the synchronization provided by hashtable will incur overhead > I think HashMap is more standard and used more often To some extent, synchronous hashtable has been replaced by the progress of collection and concurrency framework