Yes. It overwrites it because a map cannot contain duplicate keys. Each key can map up to only one value. Say you're inputing emails, for each email, there is only one value to each key on the hash...
Type: Posts; User: planetHollywood
Re: Want to Add Duplicate Key in HashMap
Yes. It overwrites it because a map cannot contain duplicate keys. Each key can map up to only one value. Say you're inputing emails, for each email, there is only one value to each key on the hash...