LEARN JAVA PROGRAMMING - HELP AND JAVA LANGUAGE, J2EE TUTORIALS

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. (This intermediate-level article was first published by IBM developerWorks, June 16, 2004, at http://www.ibm.com/developerWorks.)

The phenomenal success of object-oriented languages such as Java and C# as enablers of enterprise-wide, Web-deployed applications has compelled countless numbers of organizations and individual professionals alike to seek proficiency with such language in recent years. Many of these are drawn like moths to a flame, however -- and in fact go “down in flames” -- because they are ill prepared to harness the power of an object-oriented programming language, due to a basic lack of understanding of object concepts. (Copyright 2004 by Jacquie Barker – all rights reserved. Reprinted with permission of the author. Excerpted in part from Beginning Java Objects: From Concepts to Code, by Jacquie Barker, ISBN 1590591461; published by Apress LP.)

When a method throws an exception, Java requires that it be caught. Some exceptions require action on the programmer’s part and others simply need to be reported to the user. The Java class that we will develop in this article is concerned with the latter type of exception. Instead of rewriting code every time you need to catch an exception, you can create a class to do most of the work for you.

Help screens are a necessity for making any application user-friendly. This article will show how the JEditorPane and JFrame classes, along with HTML files, can be used to create help windows for any Java application. This is a project-oriented article that will walk the reader through all the code needed for development. Some familiarity with Java is assumed.

This chapter looks at one of the principal types of component in the Java 2 Platform, Enterprise Edition (J2EE) — Enterprise JavaBeans (EJBs). See how EJBs are applied and how they are deployed. (This is chapter 4 from Sams Publishers, author Martin Bond, et. al., Teach Yourself J2EE in 21 Days, second edition, ISBN: 0-672-32558-6).

In this excerpt from chapter 4 of Joel Murach's Java Servlets and JSP, you'll learn how to develop a web application that consists of HTML pages and JavaServer Pages (JSPs). As you will see, JSPs work fine as long as the amount of processing that's required for each page is limited. When you complete this chapter, you should be able to use JSPs to develop simple web applications of your own.

In this first chapter from the book The Art of Java by Herbert Schildt and James Holmes, the authors highlight certain features of the Java programming language that separate it from other languages. The chapter also covers: memory management, Java's built-in support for multithreading, Java's approach to exceptions as compared to C++, Java's support of polymorphism, and how bytecode enables Java's "Write Once, Run Anywhere" ability and provides security. (ISBN 0-07-222971-3, McGraw-Hill/Osborne, 2003).

Time to open the Champagne -- Java 1.5 is out, and the language has finally come of age! With the new Java 1.5 specification, Java now contains features that make it feel like a proper "grown-up" language. The rest of this article will introduce you to these new features. To try out the features for yourself, simply download Java 1.5 from Sun’s website and give it a whirl. Note that you’ll need to compile the code using the –source 1.5 option; otherwise, you’ll get compilation errors when using the new features.

Cookies serve as a facility for servers to send information to a client.   This information is then housed on the client, from which the server can later retrieve the information. In this article, we will study the concept of saving client state with cookies using Java Servlets. I’ll walk you through an end to end example where you will store and retrieve data using cookies.

This chapter has been leading us gently through the JavaServer Faces technology. More importantly, in it, Budi teaches ushow to write an online survey application to get a feel for how this great technology works. This chapter prepares you for the next chapters by introducing the JSF Application Programming Interface (API) and the Application Configuration file. This excerpt comes from chapter two of JavaServer Faces Programming, by Budi Kurniawan (McGraw-Hill/Osborne, ISBN 0-07-222983-7, 2004).

We continue with part two of Chapter 2 of Introduction JavaServer Faces Programming, by Budi Kurniawan (McGraw-Hill/Osborne, ISBN 0-07-222983-7, 2004). This section deals with the ActionListener and Component Tree, as well as validation and navigation for your JSP pages.  This chapter prepares you for the next chapters by introducing the JSF Application Programming Interface (API) and the Application Configuration file.

This chapter gently introduces the JavaServer Faces technology. More importantly, it teaches you how to write your first JSF application to get a feel for how this great technology works.  In addition to the sample chapters, this chapter prepares you for the next chapters by introducing the JSF Application Programming Interface (API) and the Application Configuration file. This excerpt comes from chapter two of JavaServer Faces Programming, by Budi Kurniawan (McGraw-Hill/Osborne, ISBN 0-07-222983-7, 2004).

Today, Budi walks us through a refresher and brief overview of server JSP programming. Today's portion covers JavaServer Pages (JSP), with a thorough overview of JavaBeans and Tags. This excerpt comes from chapter one of JavaServer Faces Programming, by Budi Kurniawan (McGraw-Hill/Osborne, ISBN 0-07-222983-7, 2004).

Today, Budi walks us through a refresher and brief overview of server JSP programming. Today's portion covers Servlet technologies, including servlets and Tomcat. This excerpt comes from chapter one of JavaServer Faces Programming, by Budi Kurniawan (McGraw-Hill/Osborne, ISBN 0-07-222983-7, 2004).

The gzip format is the de facto standard compression format in the UNIX and Linux worlds.  In a previous Dev Shed article titled Zip Meets Java, Kulvir demonstrated how to use the java.util.zip package to programmatically manipulate files in the ZIP format.  In this article, we’ll cover how to use the java.util.zip package to create and read files using the gzip format.