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Newbee2Ubuntu
Asked: 2015-10-07 00:05:00 +0800 CST

how can i upgrade only jre from 7 to jre 8 on ubuntu 1404

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I currently have the jre 7 and need to upgrade to 8 on ubuntu 1404. I need only JRE upgraded to 8 for demo purpose. Could you please guide me on this? 

java version "1.7.0_79"
OpenJDK Runtime Environment (IcedTea 2.5.6) (7u79-2.5.6-0ubuntu1.14.04.1)
OpenJDK Server VM (build 24.79-b02, mixed mode)
jre

1 Answers

  1. OpenJDK 8 for Trusty isn't available in the official Ubuntu repositories.
    As a workaround, you can install OpenJDK 8 from a PPA.
    Open a terminal and execute:

    sudo apt-add-repository ppa:openjdk-r/ppa
sudo apt-get update
sudo apt-get install openjdk-8-jdk

    Or if you only need the JRE

    sudo apt-get install openjdk-8-jre

    It is usual that several major versions are installed in parallel.

    To switch between Java 7 and Java 8 use this command:

    sudo update-alternatives --config java
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