How hash codes are mapped to buckets. What happens when hash node collisions occur. How the HashMap changed in Java 8. The ways the JDK now optimizes HashMap storage. The HashMap tutorial also ...

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

This tutorial is an introduction to socket programming in Java, starting with a simple client-server example demonstrating the basic features of Java I/O.