package dustin.examples; /** * Enum representing select western states in the United Sates. */ public enum States { ARIZONA("Arizona"), CALIFORNIA("California ...

Hashmap provides put method to insert some value on given key but this a hashCode() function internally works on that key to calculate a hash that is used to find a matched bucket with that hash value ...

It keeps track of the hashCode of the key. And then it actually holds a reference to another node, which we'll get to in just a moment. Now, when you actually start adding objects into your HashMap, ...

Java collection classes allow a developer to keep track of contained items in one of two ways, either by an indexed count or a key. This creates an obvious limitation where multiple values can’t be ...