Usually, inproduction, companies ship Java with their project binary. During runtime they setupCLASSPATH and PATHrespectively to use preferred Java version. Want to change default JVM version in Ubuntu Linux OS? Or CentOS Linux? Let’s get started on changing default Java to JDK 9 root@crunch...
If you have multiple Java versions installed on your Ubuntu system, you can check which version is set as the default one by typing:java -versionCopy To change the default version, use the update-alternatives command: sudo update-alternatives --config javaCopy...
Checking Java Version To find out which Java version is installed on your system, run the java -version command:java -versionCopy The command will display the default Java version: openjdk 11.0.8 2020-07-14 OpenJDK Runtime Environment (build 11.0.8+10-post-Ubuntu-0ubuntu120.04) OpenJDK ...
Command'java'not found, but can be installed with:sudoaptinstalldefault-jre# version 2:1.11-72build1, orsudoaptinstallopenjdk-11-jre-headless# version 11.0.14+9-0ubuntu2sudoaptinstallopenjdk-17-jre-headless# version 17.0.2+8-1sudoaptinstallopenjdk-18-jre-headless# version 18~36ea-1sudoap...
How to install Sun Java in Ubuntu 10 . 04Name, UserMe, RememberPassword, ResetHelp, ForumPosts, TodayCouncil, ForumReply, NewTools, ThreadModes, DisplayLynx, Lucid
Here you can see every installed Java version and the corresponding path, e.g. the Path for the Java 17 JDK is “/usr/lib/jvm/java-17-openjdk-amd64/bin/java” If you don’t want to change anything here and just wanted to find the path to copy it, press[Enter]to close the menu...
sudo apt install default-jdk Once the installation is completed you can verify the Java version using the following command. java -version You will receive an output similar to the one below. javac 11.0.15 Now you have installed Java Development Kit on your Ubuntu 22.04. ...
To set JAVA_HOME, open your terminal and typeexport JAVA_HOME=/path/to/java. Replace/path/to/javawith the actual path to your Java installation. How do I permanently set the JAVA_HOME variable in Ubuntu? To permanently set JAVA_HOME, add the export command to your~/.bashrcor~/.profile...
Now, even if you exit the session or restart the system, the JAVA_HOME variable will still be set to the value you specified. That’s what you want, right? Do note that if you change the default Java version in the future, you’ll have to change the value of JAVA_HOME and point ...
1 /usr/lib/jvm/java-17-openjdk-amd64/bin/java 1711 manual mode 2 /usr/lib/jvm/java-21-openjdk-amd64/bin/java 2111 manual mode Press <enter> to keep the current choice[*], or type selection number: Also run the command below to choose the default javac version. ...