Java SE

Java Language

Java Collections

Java Concurrency

Java.util.concurrent

Java Date and Time

Java Exception Handling

Java Generics

Java Internationalization

Java IO

Java JDBC

Java Logging

Java Multithreaded Servers

Java Networking

Java NIO

Java Persistence

Java Reflection

Java Regular Expressions (regex)

Java XML

Java SE Tools, Tips and Howto's

Java How To's and Utilities

Java PDF Generation with IText

Java Unit Testing

Java EE

Java Web Apps

Java Servlets

Java Developer Tools

Maven

Scala

Scala Language

Software Development

Software as Career

API Design

Dependency Injection

OOP / OOD

Exception Handling Strategies

Rich Internet Applications (RIA)

HTML4

HTML5

HTML5 Canvas

JQuery Tutorial

OAuth 2.0 Tutorial

Flex Tetris Tutorial

Flex Custom Components Tutorial

SVG - Scalable Vector Graphics

Web Services, SOA, Distributed Computing

SOA - Service Oriented Architecture

Web Services

SOAP

WSDL 2.0

RSync

Peer-to-Peer (P2P) Networks

News
Displaying SVG in Browsers
The SVG tutorial has been updated, showing how to include SVG in HTML pages using the img HTML element, or the SVG element.

Maven Tutorial.
This Maven tutorial explains the core concepts of Maven which are important to understand for new Maven users.

Time Zone Management.
Managing dates and time across different time zones can be a bit tricky, so I have explained how in this tutorial.

Unicode - converting to and from.
You can convert text to and from unicode in Java using either the String class or the Reader and Writer classes, as explained in this tutorial.

BreakIterator - finding breaks between characters, words and sentences across languages.
The BreakIterator class is part of the Java Internationalization API. It enables you to find breaks between characters, words and sentences according to the rules of different languages.