Install OpenJDK for Windows. This section explains how to install the OpenJDK version 12 for Windows: Go to Start > Control Panel > System and Security > System. Click Advanced system settings. The System Properties window appears. Click Environment Variables. The Environment Variables window appears. The following packages are available: bellsoft-java11 contains the optimal build for most desktops/servers. bellsoft-java11-lite includes Liberica JDK with compressed modules and Server VM, without any extra packages.
The best place to get OpenJDK and its related JRE is from the adoptopenjdk web site. On that site you can get a 64-bit Java 11 JRE available for Windows. The third party app you are trying to run and is complaining about Java 1.8.0 not being installed is likely poorly written. It is impossible to say without knowing exactly which app you are

jdk Java Development Kit (JDK) files. Defaults to true, meaning that the jdk component is enabled. jdk_registry_runtime. A set of Windows registry keys that other software can use to locate JDK installation files.

Navigate to the Software Downloads page on the Red Hat Customer Portal. Select the latest version of OpenJDK 8 from the Version drop-down list, and then download the JDK archive for Linux to your local system. Extract the contents of the archive to a directory of your choice: Copy. Copied!
November 2017: At the time this question was asked, the reasons for choosing between OpenJDK and Oracle JDK include: Availability of builds / installers for specific platforms. For example, last time I checked there were no Oracle JDK distros in ".deb" format for Debian / Ubuntu. And no OpenJDK builds for Windows.
Following are command to install openjdk 11. sudo apt-get install openjdk-11-jdk. We can check the version by running following command. java -version. For setting the JAVA_HOME in path we can following command. sudo gedit .bashrc. Set the following value in bashrc file
Download. or use SDKMAN!: sdk install java 21.0.1-graal. Oracle GraalVM is free to use in production and free to redistribute, at no cost, under the GraalVM Free Terms and Conditions.
As of November 2020. you can achieve this in 2 steps: Install Java 11 using yum: yum install java-11-openjdk-devel. Get all the Java configurations available in your machine: alternatives --config java. Run the above command, select the version you want to set, I've set 1 here: There are 2 programs which provide 'java'. xaFPeR.
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    • install java 11 windows openjdk