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Hashtable is synchronized, whereas HashMap isn't. That makes Hashtable slower than Hashmap.
Hashtable
HashMap
Hashmap
For non-threaded appssingle thread applications, use HashMap since they are otherwise the same in terms of functionality.
For non-threaded apps, use HashMap since they are otherwise the same in terms of functionality.
For single thread applications, use HashMap since they are otherwise the same in terms of functionality.
HashtableHashtable is synchronized, whereas HashMapHashMap isn't. That makes HashtableHashtable slower than HashmapHashmap.
For non-threaded apps, use HashMapHashMap since they are otherwise the same in terms of functionality.