hash map vs code example
Example: hashmap vs hashtable
1) HashTable is thread-safe/synchronized
HashMap is not thread safe and faster
2) HashTable does not allow any null key
HashMap allows one null key
3) Both of them implement Map interface.1) HashTable is thread-safe/synchronized
HashMap is not thread safe and faster
2) HashTable does not allow any null key
HashMap allows one null key
3) Both of them implement Map interface.