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Using RPC-Style Web Services with J2EE

Web Services provide functionality to the Internet, and are seen as the wave of the future. In this article, Martin Bond explains how to use Web Services protocols to join J2EE application components with any other software that supports those protocols. This excerpt is from Chapter (Day) 20, from Teach Yourself J2EE in 21 Days, second edition, by Martin Bond, et. al. (Sams, 2003, ISBN: 0672325586)

Syntactic Comparison of Java and C/C++

Throughout this two-part series we'll endeavor into comparing the syntax of two of the most popular programming languages while heavily pointing out the similarities and differences. Needless to say, I won't claim that one is better than the other. The main focus should be on learning both up to an intermediate level from which we can grow later on.

How to Program Google Android

So you saw the Android announcement and decided you wanted a piece of that US$10million in prize money huh? In the week since the SDK was released more than 4,300 people have joined the Android support forum posting more than 4,000 messages between them.

Finding Elements by Attributes in a DOM Document Using XPath

XPath is an expression language for selecting nodes in an XML file. This example adds to those examples by demonstrating the ability to select elements based on their attributes.
This example demonstrates some common uses of expressions that use attributes; for more information on XPath, see the specification at http://www.w3c.org/TR/xpath. In the example, the result of an XPath expression is shown next to the expression; the numbers are ids of elements in the sample file shown at the end of the example.

Creating a sorted Set

A sorted set is a set that maintains its items in a sorted order. Inserts and retrievals are more expensive in a sorted set but iterations over the set is always in order.

Taming Tiger: Concurrent Collections

Moving beyond Map, Collection, List, and Set: John Zukowski discusses the new library release in the Tiger release of the J2SE platform and what it provides: a set of utilities commonly needed in concurrent programs. If you are interested in optimizing multithreaded access to your collections, you've come to the right place.

Getting Started with Java Web Development in Eclipse and Tomcat

This is the first part of a series of Java Web development tutorials. It is intended to warm you up by introducing two fundamental Java web components, JSP and Servlet, and helping you prepare your development and deployment environments for the next steps.

Introduction to the Spring framework

Since the first version of this article was published in October, 2003, the Spring Framework has steadily grown in popularity. It has progressed through version 1.0 final to the present 1.2, and has been adopted in a wide range of industries and projects. In this article, I'll try to explain what Spring sets out to achieve, and how I believe it can help you to develop J2EE applications.

Conditionals, Expressions and Other Java Operators

In our last article we left off with Operators. Since then a strange time fluctuation has occurred, and that is exactly where we pick up. So keep reading to learn about exotic things like conditionals, expressions, and more.

Java Statements

In this article, we'll continue explaining Java statements. Statements aren't exactly complicated once you grasp the concept. Indeed, many statements have counterparts -- of a sort -- in real life.

Sudoku Solver

The Sudoku puzzle consists of a grid of 9x9 cells. This 81-cell grid is further subdivided into nine subgrids of 3x3 cells. A few of the cells are filled with a single digit between 1 and 9 (the givens). To solve the puzzle, the empty cells must be filled in such a way that every 9-cell row, column, and subgrid contains each of the digits between 1 and 9.

Java Timer Class

This creates an object that can be used like a stopwatch for wrapping blocks of code in timers.

Tutorial 1 - Objects, Applications & Applets

The first Java tutorial covers the topic of objects/classes as well as outlining the basic structure of Java applications and applets.