OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2) It should output the following: openjdk version "11.0.11" We can check if OpenJDK JRE was properly installed by running: java -version To install the OpenJDK JRE, we run: sudo apt install default-jre (Alternatively, you may opt to use a specific Java version, using for example the openjdk-11-jre package as updates are released for that version of the Java Virtual Machine, that packages will be updated, allowing you to stick to the latest and greatest update of one specific version of the Java language.) The default-jre is an excellent choice for most situations, thanks to the outstanding track of backwards compatibility of the Java Virtual Machine. Ubuntu offers the default-jre package, which is regularly updated to ship the latest version of the current OpenJDK JRE in Long Term Support (LTS). Moreover, the non LTS versions of Java are bringing a steady stream of innovation into the language, and also see some adoption. Nowadays, Java 11 is the current Long Term Support (LTS) version, but Java 8 is still widely used. With new versions of Java released every 6 months, there are multiple versions available for use. After a moment, your screen should display the information your computer has about Java, including what version you have installed.Previous step Next step 2. Type “java -version” into the Command Prompt, then press Enter on your keyboard. The list shows you which packages in your system have Java available and the command for installing java is displayed. … If you get a result similar to the one shown in the following image, you do not have Java installed. Do I have Java installed Ubuntu?īy default, Ubuntu does not come with Java (or the Java Runtime Environment, JRE) installed. In the example below, OpenJDK version 11 is installed. The output should display the version of the Java package installed on your system.Run the following command: java -version.To check the Java version on Linux Ubuntu/Debian/CentOS: Is Java installed on Windows 10? How do I find Java version Ubuntu?.How do I know if JVM is running on Linux?.How do I know if Tomcat is installed on Linux?.How do I know which Java version I have?.
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