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766 Part VI . Programming in Linux Figure 28-2: Eclipse s Problems view. The Javadoc view, which is unique to the Eclipse Java development plug-in, enables you to view the output of Javadoc, a tool that creates documentation from specially formatted Java source code comments. The Declaration view works in combination with the class browser to show you the complete declaration of methods and data types. The Console view shows the actual output of the Java program. For more information about Eclipse, including download information, visit the Eclipse home page at www.eclipse.org/. KDevelop: KDE s IDE KDevelop, another open source IDE licensed under the GPL, was originally created to provide an IDE that interoperated seamlessly with KDE and the Qt framework (a large C++ application framework) on which KDE is based. Over the years, however, KDevelop has evolved into an attractive, feature-rich development environment supporting a number of languages other than C++. Today, KDevelop is a generalpurpose IDE, although it works best when used to create Qt-based applications written in C++. Figure 28-3 shows a representative screenshot of KDevelop. If you compare KDevelop s appearance to Eclipse s appearance, you will see that both have the same type of components. In Figure 28-3, the class browser is located on the left side of the screen, the project window is located in the upper right portion of the screen, and KDevelop s version of the Declaration view is displayed in the lower right portion of the screen. The log view that occupies the bottom of the KDevelop interface in Figure 28-3 shows the compilation process. As with Eclipse, KDevelop s toolbars and menus are stuffed with buttons and menu items that cater to the needs of developers, just as a word processor is customized with buttons and menu items specific to the task of writing and formatting documents. For more information about KDevelop, including download information, visit the KDevelop home page at http://kdevelop.kde.org/. The language status support page (www.kdevelop.org/HEAD/doc/api/html/LangSupportStatus .html) shows the current list of supported programming languages. Note Note
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Chapter 28 . Programming Environments and Interfaces 765 Figure 28-1: The Eclipse IDE. The code editor view in the center of the screen shows the code for the HelloWorld .java program. Although it isn t visible in the black-and-white figure produced for this book, the code editor performs on-the-fly syntax highlight using color and fontstyle changes. Java keywords are purple; plain comments appear in green; javadocstyle comments appear in a pale blue; strings are colored blue; and normal code is black. The right side of Eclipse displays another feature common among IDEs, a class browser. Class browsers enable developers to see the structure of their programs from the point of view of the code modules that make up the program rather than as mere files in a directory. This feature is not terribly useful for a small program such as HelloWorld.java, but larger programs that consist of dozens of classes or code modules are much easier to navigate using a code or class browser. The bottom of the screen shows various information and status windows. For example, the Problems view shows problems that might have occurred while compiling the program. Eclipse, like many other IDEs, allows you to double-click on an error in the Problems view to jump right to the error in the associated code file (see Figure 28-2).
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