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

Learn about the importance of method chaining in internal DSLs, then try creating an external DSL using a powerful language recognition tool, openArchitectureWare.

HashMap vs. Hashtable similarities Both the Hashtable and HashMap implement the Map interface and both share the same set of methods used to add, remove and manipulate elements of a key-value, ...