I ' musingahashmapandihaven ' tbeenabletogetastraightansweronhowtheget () methodworksinthecaseofcollisions。
let ' s say n1 objectsgetplacedinthesamekey.aretheystoredinalinkedlist？ aretheyoverwrittensothatonlythelastobjectplacedinthatkeyexiststhereanymore？ aretheyusingsomeothercollisionmethod？
If they are placed in a LinkedList，isthereawaytoretrievethatentirelist？ If not，istheresomeotherbuiltinmapforjavainwhichicandothis？
For my purposes，separate chaining would be ideal，as if there are collisions，ineedtobeabletolookthroughthelistandgetinformationationabonabouboution
Thanks for all your help！
解决方案
aretheyoverwrittensothatonlythelastobjectplacedinthatkeyexiststhereanymore？
Yes，assuming you ' reputtingmultiplevalueswiththesamekey (accordingtoobject.equals，not Object.hashCode.) that ' specod
ifthemappreviouslycontainedamappingforthekey，theoldvalueisreplacedbythespecifiedvalue。
ifyouwanttomapakeytomultiplevalues，you ' reprobablybetteroffusingsomethinglikeguava ' slist multimap， arraylistmultimapinspeecification whichmapskeystolistsofvalues.(disclosure : icontributetoguava.) if you can ' toleraterateate