See our Getting Started with Linode and Creating a Compute Instance guides.įollow our Setting Up and Securing a Compute Instance guide to update your system. If you have not already done so, create a Linode account and Compute Instance. The remaining branches have all reached the end-of-life stage.įor more information about OpenJDK, see the OpenJDK website. Release 11 is still supported for several years, but users should consider upgrading to a newer branch. The most widely-used Long-term support (LTS) branches of OpenJDK are release 11 and release 17. Users who only want to run Java programs only require the JRE. The JRE is much less efficient at running Java files than applications because it must compile the source code first. It can also run Java files, but cannot convert these files into programs. The JRE interprets Java bytecode into lower-level code. It bundles the Java Virtual Machine (JVM) together with the Java Class Library (JCL) and other files. JRE: The JRE executes Java code and compiled Java bytecode.Some Java-dependent applications require the JDK because they convert Java Server pages into Java servlets and must compile them first. ![]() The JDK is necessary to create stand-alone Java executables. It also contains a development kit consisting of developer tools and a debugger. The JDK includes the Javac compiler for compiling Java programs into bytecode.
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