Michael Kölling: Educational Programming on the Raspberry Pi, Electronics, 5 (3). TutorialsĪs basis for your own projects, all of the above I/O helper classes, plus helper classes to use analog inputs: using the MCP3008, and another one using a just a capacitor (described here) are avaliable in a single BlueJ project for download.Īn academic paper is available discussing some of the motivation, background and possibilities of BlueJ on the Raspberry Pi: There is no need to install the JDK first, as it is included on the default Raspberry Pi image. Sudo apt-get update & sudo apt-get install bluejīlueJ already includes Pi4J, which is an object-oriented API for Java to access the GPIOs of the Raspberry Pi. However, If you don't have BlueJ already installed, just run this command in a terminal on the Raspberry Pi: BlueJ is a Java development environment that allows development as well as program execution on the Pi.īlueJ provides full access to hardware attached to the Raspberry Pi via the open source Pi4J library, from the the familiar Java SE language, including the new Java 8.īlueJ is now part of the Raspbian distribution, and it is already installed by default on the current Raspberry Pi image. Of basic computer programming in schools. An incomplete uninstallation of a program may cause problems, which is why thorough removal of programs is recommended.BlueJ is an Integrated Development Environment (IDE) written in Java, designed for the teaching of java for beginners.įrom version 3.14, BlueJ fully supports the Raspberry Pi, a credit card sized single board computer aimed at promoting the teaching There could be other causes why users may not be able to uninstall BlueJ. JDK 1.4) or later installed on your system to use BlueJ. Prerequisites You must have J2SE v1.4 (a.k.a. Another process is preventing the program from being uninstalled. 2 Installation BlueJ is distributed in three different formats: one for Windows systems, one for MacOS, and one for all other systems.Due to an error, not all of the files were successfully uninstalled.A file required for the uninstallation to complete could not be run.The program’s built-in uninstaller does not start or does not operate properly.Possible problems that can arise during uninstallation of BlueJ Removing process running for a long time and does not come to the end.Some traces of the program can still can be found on the computer.After removing the program, some of its related processes still run on the computer.The program is not listed in the Windows Settings or Control Panel.The program is regarded by the user and/or some websites as a potentially malicious.The program is being re-installed (uninstalled and installed again afterwards).After the file has been downloaded, double click it. but the directions should be similar.) 2. I have not actually installed BlueJ on a Mac myself, so youre on your own here. Java is already installed, so go to step 3. (If you want to run BlueJ on a Mac, you need to be running OS X. The program is not as good as the user expected. First, you need to download and install the Java 2 Platform.The program crashes or hangs periodically/frequently.
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