Java is a popular programming language available in many diverse contexts for implementing real software solutions.
Java & JEE books Page9
Code Conventions for the Java Programming Language Code conventions are important to programmers for a number of reasons:
* 80% of the lifetime cost of a piece of software goes to maintenance.
* Hardly any software is maintained for its whole life by the original author.
* Code conventions improve the readability of the software, allowing engineers to understand new code more quickly and thoroughly.
* If you ship your source code as a product, you need to make sure it is as well packaged and clean as any other product you create.
Java for WebObjects Developers Java is a popular programming language available in many diverse contexts for implementing real software solutions. But Java is more than just a
programming language-it is a set of tools, a runtime with a virtual machine, a broad landscape of packages full of reusable classes. Java is an
environment. Aside from the glamour of applets with sophisticated graphical user interfaces, and the rigors of multi-threaded or networked programming, Java turns out to be a rather simple language for humble, general-purpose jobs running on a plain old computer. With some basic ideas, and some familiarity with the most commonly used language constructs, you can go a long way. This is especially true when your Java code is part of a larger system that handles a lot of the details already. To get started, all you need is the Java relevant for a WebObjects developer.
Introduction to Program Design
In this chapter you will learn how a computer can be controlled by a set of instructions called a program. This chapter introduces two different aspects of computation: single-minded instruction following and coordination among instruction followers. The programs in this book involve both aspects of computation.
The first aspect of computation is step-by-step instruction following, like the process of making a sandwich. This kind of computation is a sequence of instructions that produces some desired result. The question that drives this part is "What do I do next?" Pieces are put together using "Next,...", "If ... then ... else ...", and "until...". This kind of computation has an end goal to be accomplished by execution of these instructions. The programs in this book use short sequences of instructions, executed over and over, to create entities that can provide services or respond to requests.
This document was created with an intent to show people how easy Java really is, and to clear up a few things I've missed in the previous release of the document.
This is a growing document; as new features are added to the language, new techniques are discovered or realized, this document shall be updated to try to accommodate them all. If you have suggestions, or requests, (or spelling/grammar errors) just e-mail them, and I'll try to add the suggested topics into the subsequent release.
Java Reference Guide
This week in the Java Reference Guide I explore the Struts capability of another IDE: BEA Workshop for Struts. Now don't worry; Workshop is built on top of Eclipse and supports non-WebLogic deployments such as Tomcat, JBoss, WebSphere, and others, so you can consider it for your application server. Its drawback is a hefty price tag ($499 for the Struts-only version and $899 for the full version), but the productivity that it boasts may be worth your dollars. There is a reason that it earned the Eclipse community's 2006 "Best Commercial Eclipse-based Tool" and the JavaPro 2006 "Reader's Choice Award": it's very good, providing probably the best visual Struts designer I have evaluated. This week we'll review its features, and next week we'll build a sample Struts application so that you can properly assess it for yourself.