Donovan Data Systems
Ahora conocida como Mediaocean
¿Esta es tu empresa?
Pregunta de entrevista de Donovan Data Systems
What is the difference between HashMap and Hashtable?
Respuesta de la entrevista
Anónimo
27 may 2011
Stock question every employer seems to ask. To save you the trouble of looking it up, Hashtable is synchronized, HashMap is not, Hashtable doesn't allow nulls, HashMap allows one null key and null objects.