Pregunta de entrevista de KinderTouch
Which two methods you need to implement for key Object in HashMap?
Respuesta de la entrevista
Anónimo
18 may 2017
In order to use any object as Key in HashMap, it must implement equals and hashcode method in Java. Read How HashMap works in Java for a detailed explanation on how equals and hashcode method is used to put and get an object from HashMap.