![]() ![]() sudo chmod +x /etc/profile.d/jdk.csh /etc/profile.d/jdk. Setenv PATH $:/usr/lib/jvm/jdk-19/bin:/usr/lib/jvm/jdk-20/db/binįinally, change the permissions via command, and it should take place next time you log in. Option 2.) To make it permanent, create and edit config file via command: sudo gedit /etc/profile.d/jdk.shĮxport PATH=$PATH:/usr/lib/jvm/jdk-20/bin:/usr/lib/jvm/jdk-20/db/binĪnd create anther one for C shell: sudo gedit /etc/profile.d/jdk.csh Option 1.) Set JAVA_HOME for current command console, that will work until you close it: export JAVA_HOME=/usr/lib/jvm/jdk-20 setenv JAVA_HOME=/usr/lib/jvm/jdk-20 When done, verify by running command in terminal: java -version javac -version sudo update-alternatives -config java sudo update-alternatives -config javac sudo update-alternatives -config jar Similarly, add links for other executable files (e.g., jarsigner, jlink, javadoc) as you need.ī.) Next, run the commands below one by one, and type number to select Java JDK 20 as default. To set it as default, do the following 2 steps one by one.Ī.) Create symbolic links for the executable files: sudo update-alternatives -install /usr/bin/java java /usr/lib/jvm/jdk-20/bin/java 1 sudo update-alternatives -install /usr/bin/javac javac /usr/lib/jvm/jdk-20/bin/javac 1 sudo update-alternatives -install /usr/bin/jar jar /usr/lib/jvm/jdk-20/bin/jar 1 It installs the language files into ‘ /usr/lib/jvm/jdk-20/‘ directory. Then, extract the tarball to that directory via: sudo tar -zxf ~/Downloads/jdk-20_linux-aarch64_ -C /usr/lib/jvm/ 3. deb in file manager to install it via Ubuntu Software App.įor ARM device, run command to create ‘/usr/lib/jvm’ directory in case it does not exist: sudo mkdir -p /usr/lib/jvm Alternatively, one can install Oracle JDK 17 on Ubuntu using the Linux Uprising team PPA installer script which automatically downloads and sets the default Java version on Ubuntu 64-bit based systems. By default, Ubuntu 18.04 includes OpenJDK. For this option, we download the production-ready Java from the Java SE Downloads page. Once you downloaded the package, open terminal (Ctrl+Alt+T) and run the command below to install the deb package: sudo apt install ~/Downloads/jdk-20_linux-圆4_bin.deb The easiest option for installing Java is to use the version packaged with Ubuntu. deb package for modern PC and laptops, or tarball for ARM cpu architecture. ![]()
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