Install Java in ubuntu (linux) | 2022

Published: 14 January 2022
on channel: Code-X

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In this video, I'm going to show you how to install Java and set the environment path on Ubuntu (linux).

First update the system before installing JDK or JRE
$ sudo apt update

Install JDK & JRE
$ sudo apt install default-jdk
$ sudo apt install default-jre
$ sudo apt install openjdk-8-jdk

Update system and installed
$ sudo apt update

Check Java version to confirm the installation
$ java --version

To set the Environment, we need to copy the path for the desired Java version
$ sudo update-alternatives --config java
$ sudo gedit /etc/environment

// Example
JAVA_HOME="/usr/lib/jvm/java-11-openjdk-amd64/bin/java"

Check Java by Running Sample Program

Create Simple.java

$ gedit Simple.java

Write code, compile and run
$ javac Simple.java
$ java Simple

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