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The output will look something like the following. You can configure which version is the default for use in the command line by using update-alternatives, which manages which symbolic links are used for different commands. There can be multiple Java installations on one server. While it may be worth investigating Oracle JDK 9, there may still be security issues and bugs, so you should opt for Oracle JDK 8 as your default version.

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sudo apt-get install oracle-java9-installer.

To install JDK 9, use the following command: There is more information about Java 9 on the official JDK 9 website. The general release is scheduled for summer 2017. Oracle JDK 9 is currently available for early access through its developer preview. If you’re ready to get started, skip down to the Managing Java section below.

Once the installation is complete, you can verify your Java version:Īt this point, you have Oracle JDK 8 installed, but you may want to also install one or more of the versions below. Use the arrow key to select “Yes”, then press “Enter” to accept the license.

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You’ll also be required to accept the Oracle Binary Code license terms.

sudo apt-get install oracle-java8-installerĪgain, you’ll be prompted to type y to confirm the install.

You can install it using the following command: Oracle JDK 8 is the latest stable version of Java at time of writing. Because it’s the latest stable release, Oracle JDK 8 is the recommended version at the time of writing. You can decide which versions you would like to install, and can choose to install one or several. Now we’ll go through the installation process of different versions of Java.

sudo add-apt-repository 'deb xenial main'.

To ensure that we get the correct source line on Debian, we’ll need to run the following command that also modifies the line: When prompted to confirm the installation, type y for yes.

sudo apt-get install software-properties-common.

This will work to add the repository to your sources list and import the associated key. You’ll first need to install the software-properties-common package in order to use the apt-get-repository command. If you want to install the Oracle JDK, which is the official version distributed by Oracle, you’ll need to follow a few more steps. You now have the Java Runtime Environment or the Java Development Kit installed. You can install the JDK with the following command: The JDK does contain the JRE, so there are no disadvantages if you install the JDK instead of the JRE, except for the larger file size.

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The JDK is usually only needed if you are going to compile Java programs or if the software that will use Java specifically requires it. There is another default Java installation called the JDK (Java Development Kit). When prompted, type y for yes to confirm the installation. Specifically, this command will install the Java Runtime Environment (JRE). Specifically, this will install OpenJDK 8, the latest and recommended version. The easiest option for installing Java is using the version packaged with Debian. A sudo non-root user, which you can set up by following the Debian 8 initial server setup guide.The last section outlines setting the JAVA_HOME environment variable Prerequisites If you decide to install multiple versions of Oracle Java, you can follow the section on managing Java. This tutorial provides different ways of installing Java on Debian 8: you can download the Default JRE or JDK or the Oracle JDK. The programming language Java and the Java virtual machine or JVM are used extensively and required for many kinds of software.