![]() It will change the default Java version to Oracle Java 11, setting it in the JAVA_HOME variable and PATH variables. If you want to use this recently installed Oracle Java 11 as the default Java version on your system, use the following command: sudo apt install oracle-java11-set-default-local If you want to install Java 11 and set it as default, use the following command: sudo apt install oracle-java11-installer-local So make sure you have good internet speed: sudo add-apt-repository ppa:linuxuprising/java ![]() Just a heads up, it will download plenty of files. Use the following commands to install Oracle JDK in Ubuntu and Linux Mint. Install Oracle JDK in Ubuntu and Linux Mint If you are specifically looking to install Java 8, Java 7 or Java 6 etc, you can use openjdk-8- jdk, openjdk-7- jdk/ openjdk-6- jdk. In a terminal, use the following command to install OpenJDK Java Development Kit: sudo apt install default-jdk It contains the Java Compiler (javac) package. Install OpenJDK in Ubuntu and Linux Mint (for compiling and running Java programs)Īs mentioned previously, if you want to compile and run Java programs on Ubuntu, you need the JDK. But if you want to install a specific version, you can use openjdk-8-jre, openjdk-7-jre/openjdk-6-jre instead of default-jre in the above command. This will install the latest JRE available from Ubuntu. Open terminal and use the following command to install JRE: sudo apt install default-jre As an end user, you just want to use Java application and for that, you’ll need JRE. Jar files are basically precompiled Java files. JRE is required for running Jar files on Ubuntu. Install JRE in Ubuntu and Linux Mint (for running Jar applications) Once we have see the difference between various types of ‘Java’, let’s see how to install them. If you don’t have Java installed on your system, you’ll see an output like this: The program ‘java’ can be found in the following packages:īasically Ubuntu is giving you hint about the various packages you can install to get Java. OpenJDK 64-Bit Server VM (build 10.0.2+13-Ubuntu-1ubuntu0.18.04.4, mixed mode)Īs you can see in the above output, the system has Java 10 installed via OpenJDK. ![]() If you have Java installed, you should see an output like this: openjdk 10.0.2 Open a terminal and use the following command: java -version This is also helpful in knowing which version of Java is installed on your system. Check if Java is already installed in Ubuntuīefore you see how to install Java, you should verify if Java is already installed. Once you do that, it’s time to see how to install these packages and get Java on your Ubuntu Linux. Now that you know the difference between JRE, JDK, OpenJDK and Oracle JDK, you should make a decision to install one of these packages. While OpenJDK is sufficient for most of the cases, some programs such Android Studio suggests using Oracle JDK to avoid UI/performance issue. OpenJDK is Open Source implementation of Java Development Kit while Oracle JDK is the official Oracle version of Java Development Kit.JDK (Java Development Kit) is what you need to if you have to do some programming or develop software related to Java.This is all you need if you are not a programmer. JRE (Java Runtime Environment) is what you would need normally to run a Java-based application on Ubuntu.JRE vs OpenJDK vs Oracle JDKīefore we go on seeing the process to install Java, let’s quickly understand the difference between JRE, OpenJDK and Oracle JDK. But what is the difference between these packages and which one should you install? Let me explain that in the next section. You can get Java on Ubuntu via multiple packages. In this quick post, we shall see how to install Java in Ubuntu, Linux Mint and other Debian and Ubuntu based distributions. But there are high chances that for one reason or other, you might have to install Java, no matter how much you dislike it. I get the following error Err:1 groovy-updates/universe amd64 openjdk-8-jre-headless amd64 8u292-b10-0ubuntu1~20.Wondering about how to install Java on Ubuntu? Installing Java is certainly one of the first few things to do after installing Ubuntu and it is very easy to do so. If I try to do install it with the command sudo apt install openjdk-8-jre-headless Sudo apt install openjdk-14-jre-headless # version 14.0.2+12-1 Sudo apt install openjdk-8-jre-headless # version 8u292-b10-0ubuntu1~20.10 Sudo apt install openjdk-13-jre-headless # version 13.0.7+5-0ubuntu1~20.10 ![]() Sudo apt install default-jre # version 2:1.11-72, or java -versionĬommand 'java' not found, but can be installed with: I have a machine with a version of Ubuntu 20.10 installed.
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