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, ...

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

The JTable class offers rich functionality for grid-like data display. This Java tip addresses common display issues related to dynamically changing such things as scroll bars, column width, and ...