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How install and config Java 11 on PopOS
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Java11_PopOS.markdown

How install and config Java 11 on PopOS

Introduction

PopOS is created from Ubuntu, so the configuration for Java environment can be follow the same way. We need only install the new version from the JDK and automatically it will be set as default. However, if you like rollback to previously version that was installed before, you can use the last step to do that.

Steps

Install the JDK 11

sudo apt update
sudo apt install openjdk-11-jdk

Change default configuration from JDK

sudo update-alternatives --config java
...
* 0            /usr/lib/jvm/java-11-openjdk-amd64/bin/java      1111      auto mode
  1            /usr/lib/jvm/java-11-openjdk-amd64/bin/java      1111      manual mode
  2            /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java   1081      manual mode
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