Java redhat8/20/2023 ![]() ![]() How to Set JAVA_HOME Environment Variable in RHEL 8 Important: To use Java 12 as the default version, you have to specify it as the value of the JAVA_HOME environment variable as explained in the next section. To check the Java version, you have to use the full path to the binary as shown. But you can download the production-ready OpenJDK 12 from here and install it as shown. Unfortunately, RHEL 8 does not provide or support Java 12 by default. The output of the above command shows that Java 8 is the default version. Once the installation process is complete, you can check the Java version installed using the following command. ![]() ![]() # dnf install java-11-openjdk-devel #install JDK 11 # dnf install java-1.8.0-openjdk-devel #install JDK 8 Next, install OpenJDK 8 and 11 using the following commands. To install OpenJDK on RHEL 8, first update the system packages using dnf command as shown. RHEL 8 with RedHat Subscription Enabled.We will also show you how to install the latest version of Java OpenJDK 12 to develop and run Java applications. In this article, we will show you how to install OpenJDK 8 and OpenJDK 11, the two supported versions of Java in RHEL 8. Note: If you are looking for free JDK versions, install the Oracle OpenJDK which offers the same features and performance as Oracle JDK under the GPL license. It is Oracle’s supported Java SE ( Standard Edition) version. On the other hand, if you want to develop applications for Java, you need to install the Oracle Java Development Kit ( JDK) which includes a complete JRE together with tools for developing, debugging and monitoring Java applications. You typically need the Java Runtime Environment ( JRE), a bundle of software components used to run Java applications. To run Java-based applications on your RHEL 8 system or server, you need to have Java installed. Java is more than just a language, it is a technology platform with many interconnected capabilities. Java is a fast, secure, reliable, and popular, general-purpose programming language and computing platform. ![]()
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