![]() ![]() But it does illustrate the power of the JVM.įollow Arcane Science Lab on WordPress. This is, of course, just a trivial proof of concept. It took all of five lines of JavaScript to invoke a Java class instance. In this simple example JavaScript is calling Java’s JFrame class and instantiating a running instance with a simple title. I installed Apache ant and built one of the sample applications, Scriptpad. I’ve got another two week business trip coming up, and more business travel after that. It’ll have Arch Linux fully up to date as well as Java 8.įor now tax season looms and other work is making my life very busy. I may make an image with Java 8 available on April 1, like I had originally intended. Although I’ve seen downloads from Sourceforge, they’ve pretty much dried up. Compressed, my 8GB images are now at 1GB, which makes it a chore to upload them, and I’m sure a chore for you to download. I don’t know when I’ll release a new image. And I can investigate manipulating the RPi’s various I/O devices via Java 8. A second key reason is that I can call down into the Java libraries via JavaScript. Before you bust a gasket telling me about Java’s security sins, know that the vector for Java security breaches was with older versions of Java using applets. There are a number of reasons for doing this, one of which is security I believe Java 8 has far more than V8. The key reason is not to abandon node.js, but to shift the JavaScript portion (if possible) to run on Nashorn as apposed to Google’s V8. I’m looking at Java 8 to run JavaScript via Java 8’s built-in JavaScript engine, Nashorn. I don’t intend to run graphical Java applications as much as service type applications. I finally need the executable jar file to be working on Raspberry pi linux and I want to use only openjdk since oracle java for Rpi doesnt support AWT and Swing and my application majorly includes that. It was slow like my computers from a good decade ago, the ones running early Pentium chips (back when Intel still called their chips Pentiums). I have installed netbeans in my PC (windows 7), wrote a javaFX application program and generated executable jar file. To be honest it was slow starting, but not horribly slow. As a test I also dropped the demo package on my RPi and fired up one of the demos. One of the Java implementations was for ARM V6, compiled for hard float (chip-supported floating point math). During that period of time Oracle released Java 8 on 18 March. You can find a somewhat generic description here. This enables NetBeans to download and execute Java programs on the Pi. The following actions configure the Raspberry Pi as a remote Java SE platform for NetBeans. It’s been almost a month now since my last Raspberry Pi post I was on a business trip in Kansas for three weeks. Step 3: Configure the Raspberry Pi As a Remote Platform in NetBeans. In the Services window, open C/C++ Build Hosts, right-click the hostname and select Path Mapper.įrom IDE’s Tools menu, choose Options > C/C++ > Build Tools, click Edit button, select the remote host and click the Path Mapping button.What you’re looking at is the SwingSet2 demo, something rather old now, running via the latest Java release, Java 8 on my Raspberry Pi, on the twm desktop and on top of the latest Arch Linux for ARM. You can set the mapping by doing one of the following: When using file sharing for project files, you can map the local and remote paths to the shared folder through the Path Mapping feature. Select Tools > Options > C/C++ > Build Tools and click the Edit button next to the Build Host list. You can access the remote host and tools information from the IDE’s Tools menu as well as the Services window. ![]() See the IDE’s integrated help or the article C/C++ Remote Development Modes for more information. You can work on projects in full remote mode where the project and the tools are on the remote host. ![]() You can select which changed files to download. If building your project remotely compiles libraries or generates other files in addition to the main build product, the IDE prompts you to download the files to the local system. If you are using a remote host to build and run an application with a graphical UI, you can select Enable X11 Forwarding in the hosts properties to that the UI can be seen on your local system while it runs on the remote host. You can change the properties of a remote build host after initial setup, by right-clicking the host in the Services window and selecting Properties. ![]()
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