Exercises, examples and other material relating to training module J801. This topic is presented on public courses Java Extra, Deploying Java Applications on Linux / Unix

Java is the progamming language that provides the instructional glue that holds may web-based applications together. Even if you're not a programmer yourself, but are just deploying applications written by others, you'll find it useful to have an overview of the component parts of Java and the basic programming structures, which is what we cover in this module.

Overview of Java

Articles and tips on this subject		updated
4394	Philosophy behind object design - and how I applied in to a Java example * When you're writing all the logic to deal with a particular type of data, it's a good idea to write it into a CLASS * Where you have similar types of data, it's a good idea to put the shared logic into a BASE CLASS and then write SUBCLASSES which are based on that base class. That way your common ...	2015-01-15
1082	Straight from the .jar Disc drives have got much faster since my youth ... and processors at have got much much MUCH faster in the same period. So, 30 years ago, we used to compress files to store them on the disc when we knew we weren't likely to keep needing them, but we didn't compress them as a matter of course as we ...	2007-02-16

Av2.java	An array of objects of different types
Aviary.java	Sample program - using Duck and Gull classes
Bird.java	Base (abstract) class
Colddesert.java	Part of the Dairy Queen demo
DairyQueen.java	Main application to show inheritance and polymorphism
Desert.java	Base Class for use in Dairy Queen demo
Duck.java	inheriting and implementing class
Friend.java	Interface to define an extra API
Gull.java	Class in a package, extends another, implements an interface
Icecream.java	A subclass of Desert
Insurable.java	Dairy Queen demo - just a shell interface to show the implements mechanism