![]() \bluej\extensions2 (Windows), or /Library/Preferences/org. lib/extensions2 (Unix), or \lib\extensions2 (Windows), or /BlueJ.app/Contents/Resources/Java/extensions2 (Mac, Control-click BlueJ.app and choose Show Package Contents)įor all users of this system in all projects. BlueJ has three separate locationsįor extensions, each giving the extension a different scope. Translates a text location into an offset into the text held by this editor. ![]() A guideline for the changes required is available in the Guide to Writing Extensions for BlueJ.Įxtensions are installed by placing the extension jar file String fileName 'c:temptest.txt' FileReader input new FileReader (fileName) 2.2. For creating the instance of FileReader, use one of its constructors. Specify the name of the file in File name, such as output.txt, and press Save. Extensions that had been written for previous versions of BlueJ (4 and earlier) will not work until they are recompiled for the new extensions API. To use the FileReader in the application, we must first import it from package java.io using the import statement. For older versions of BlueJ (before 3.0. The relevant Jira issue), but uses JavaFX instead. The encoding is specified in the 'project.charset' setting of the package.bluej file (in the project root), and determines both the encoding used by programs run under BlueJ as well as the encoding used for Java source files within the project. It no longer relies on the Java Swing framework for the extensions (see Note! In BlueJ 5.0.0 the extensions mechanism was changed. Extensions offerĪdditional functionality not included in the core system. I chose the 'open a non-bluej project' option in the bluej menu, marked my project folder and pressed open. java files and check that everything is going well). ![]() (my lecturer says that he checks our projects in bluej so we have to compile it also in bluej before sending him the. To develop extensions to the environment. After saving it in my workspace, i wanted to open them in Bluej. BlueJ offers an extension API that allows third parties
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