As you begin writing WML decks, it is a very good idea to add comments to your code. Comments are a feature that WML has inherited directly from XML, and they allow programmers to insert plain text in their WML files, to describe what's going on at any given point - they will never be seen by users of your applications.

When we loaded that first WML example into the UP.Simulator, we really only paid attention to what happened in the window containing the 'phone'.

The Wireless Markup Language is a markup language that was designed expressly for the purpose of creating applications to be sent over wireless networks to small devices, such as mobile telephones.

Web mail accounts such as the ubiquitous 'Hotmail', or 'Yahoo! Mail' are fast becoming the most popular kind of e-mail - there are almost 170 million subscribers to this type of account.

One of the most important lessons for an Internet retailer is to ensure that the online buying experience is as easy and as enjoyable for the customer as possible. It is essential that the customer feels in control of the situation and is informed and reassured every step of way.

In this section, we'll look at a WML class that will make the generation of WML easier, and to separate some of the WML syntax logic from the Java servlet code. This class models the formatting and header information needed to produce a valid WML document, thus allowing our servlet code later in the chapter to concentrate on the business of being a servlet, and hides some of the underlying complexity of creating WML from our JavaMail code.

The JavaMail API offers a clean object-oriented framework of classes that model a theoretical mail system. JavaMail is platform-independent and protocol-independent, and therefore presents an ideal way to build e-mail and messaging solutions that will work with WAP technology.

To help us understand the issues concerning JavaMail, CDO and programming e-mail systems, we must first explore the key elements of an e-mail system.

Generally acknowledged as being the 'killer-app' of the Internet, e-mail is more frequently used than even the Web. As more and more people rush online, e-mail will become, even more, the ubiquitous means of communication between individuals, for all sorts of purposes, in many different spheres of activity.

In this brief article, we take a peek into WAP and find out what it is all about. Should we be building websites for WAP phones?