![]() Using the getEditor() method of BClass, you can obtain a proxy for a specific class editor. The first step in activating the preference panel is to instantiate a BlueJ proxy object that is part of the Preferences class. The PreferencesGenerator allows the creation of a Panel containing preference data and the loading and saving of that data. It also provides access to its projects, packages, classes, and objects through a set of wrapper classes. The proxy object generates events whenever a user performs a significant action within BlueJ. ![]() A menu item can be added to the BlueJ Tools menu, as well as the Class and Object menus, by using an extension. There are also a few extensions that add new features to the BlueJ IDE, such as the BlueJ Database Connector extension which allows you to connect to databases from within BlueJ.īlueJ’s extensions mechanism allows it to add new functionality on and off the system as and when required. These include things like the BlueJ Score extension, which allows you to view your code’s performance in terms of different metrics, and the BlueJ Checkstyle extension, which helps you to check your code for style issues. There are a few different types of extensions for BlueJ that exist. ![]() ![]() The BlueJ integrated development environment encourages experimentation, as well as interaction with other developers. Students can use BlueJ as their first classroom in Java to learn the language and then transition to NetBeans, which is a world IDE. ![]()
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