Java has two hash table classes: HashTable and HashMap. In general, you should use a HashMap. While both classes use keys to look up values, there are some important differences, including: A ...

This tutorial explains how a Java HashMap works internally and explores the challenges of implementing it, including buckets, collisions and hash codes.

Java has two hash table classes: HashTable and HashMap. In general, you should use a HashMap. While both classes use keys to look up values, there are some important differences, including: A ...