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PUBLIC MARKS from tadeufilippini with tag openjdk

October 2009

JavaInstallation - Community Ubuntu Documentation

Overview Sun Microsystems have developed Java, which is many things depending on who you ask. It is a language, and an execution environment and probably many more things. On this page Java refers to the software that executes programs compiled to Java byte codes (akin to machine language). Be aware of the Java trap. Although keep in mind that with the GPL licensing of the Sun Java implementation the Java trap is a thing of the past. Even RMS thinks so. Use IcedTea on Ubuntu 7.10 and OpenJDK on Ubuntu 8.04 or later. The first free project to offer substantial parts of Java platform functionality was Guavac. After that the free software movement developed java compilers, most notably the GNU Compiler for Java. GCJ is a front end to the GCC compiler which can natively compile both Java(tm) source and bytecode files. The compiler can also generate class files. Gcjwebplugin is a little web browser plugin to execute Java applets. It is targeted for Mozilla and compatible browsers that support the NPAPI. Others include the Eclipse Java Compiler, which is maintained by the Eclipse Foundation. Eclipse is an open-source Integrated development environment (IDE) written primarily in Java. The Eclipse open source community has over 60 open source projects. OpenJDK is the open source Java, derived from sources which will become OpenJDK 7 in the future.

July 2009

OpenJDK: Download and install

How to download and install prebuilt OpenJDK packages Ubuntu logo On Ubuntu 8.04 (Hardy Heron), do one of the following: * On the Gnome desktop (Ubuntu): o In the main desktop menu, choose "Add/Remove ..." o In the "Show" toggle box, select "All Open Source Applications" o Search for "OpenJDK" o Select the "OpenJDK Java Runtime" (openjdk-6-jre) o Confirm the installation of community maintained software o Press the "Apply Changes" button * On the KDE desktop (Kubuntu): o In the main desktop menu, choose "Add/Remove Programs" o In the "Adept Installer" search for "OpenJDK" o Select the "OpenJDK Java Runtime" (openjdk-6-jre) o Press the "Apply Changes" button * On the command line, type: $ sudo apt-get install openjdk-6-jre The openjdk-6-jre package contains just the Java Runtime Environment. If you want to develop Java programs then install the openjdk-6-jdk package. For more information on how to install Java on Ubuntu, including on versions prior to 8.04, please see the Ubuntu Java Community page.

October 2007


by 1 other
Welcome to the Open-Source JDK Community! This is the place to collaborate on the open-source JDK, an implementation of the Java Platform, Standard Edition specification defined in the Java Community Process.