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How to Install JDK in Linux

Method 1 of 2:

Using Ubuntu or Linux Mint

  1. Press Ctrl+Alt+T to open a new terminal window. If you're already at the command prompt, just skip to the next step.
  2. Type sudo add-apt-repository ppa:linuxuprising/java and press ↵ Enter. This adds the Linux Uprising repository.[1]
  3. Type sudo apt update and press ↵ Enter. Now that the repository is ready, you can use it to install JDK.
  4. Type sudo apt install oracle-java12-installer and press ↵ Enter. JDK is now installed.
  5. Type sudo apt install oracle-java12-set-default and press ↵ Enter. This sets Java 12 as the default Java version.
    1. To double-check the default version, type java --version at the command prompt and press ↵ Enter.
Method 2 of 2:

Using Debian

  1. Press Ctrl+Alt+T to open a new terminal window. If you're already at the command prompt, just skip to the next step.
  2. Type su - and press ↵ Enter.
  3. Add the Linux Uprising repository. Here's how:
    1. Type echo "deb http://ppa.launchpad.net/linuxuprising/java/ubuntu bionic main" and press ↵ Enter.
    2. Type apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 73C3DB2A and press ↵ Enter.
  4. Type apt-get update and press ↵ Enter.
  5. Type apt-get install oracle-java12-installer and press ↵ Enter.
  6. Type exit and press ↵ Enter. JDK is now installed.
  7. Type sudo apt install oracle-java12-set-default and press ↵ Enter. This sets Java 12 as the default Java version.
    1. To double-check the default version, type java --version at the command prompt and press ↵ Enter.
Update 04 March 2020
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