Writing Java Database Apps with purQuery - Java tutorial

Category: Java tutorials > Database - Difficulty:

XML is a data format concerned primarily with compatibility and flexibility. This tutorial will teach you the fundamentals of XPath. Part 1 of this tutorial details the XPath specification, which allows you to specify particular sections of an XML document using a directory-like syntax. You'll learn the syntax of XPath, and you'll work with tools that let you experiment with XPath.

A resource is a file situated somewhere in the class path. It can be a file in a package folder, in the classes folder or in a jar file. Resources are usually needed at runtime and they can be properties files, images and so on. The ClassLoader and Class classes provide methods to find the desired resources but a little bit of attention has to be payed to the quirks of this API.

By default a Swing application or applet does not have the native look and feel of the operating system. This tutorial shows how to modify your application to use the correct look and feel for the platform.

Introduced in Java 6 is the option of displaying a splash screen when an application starts. The splash image file can be specified on the command line with the new splash option -splash:splash.jpg or in the manifest of a jar file with the SplashScreen-Image option.

Love or hate it, static type checking can make code more robust. Programming languages are moving away from static type checking, but it is too powerful a debug resource to abandon. Static type checking can be one of the key weapons in a powerful arsenal against introducing and for detecting bugs. This article explains why we should be glad that the Java language supports it, and discusses how it can be made even better.