Tutorials and articles on Java and other topics

These tutorials contain some I've written, and some others have written. In the latter case, I've written reviews of them at a particular moment in their history that may or may not still hold and may or may not still be useful. Some of this stuff is little more than copious note-taking and doesn't rise to the level of a tutorial.

Visual JDK Notes, an elucidation of Oracle, Java, JDKs and OpenJDK.

Nuts and bolts Java stuff...

Some of this stuff is pretty old and I wrote it years ago when I was first trying to penetrate Java. It's quick notes and recipes that grew over time.