Oracle Java 8 JDK – Java Development Kit – apt-get install method

Silent install Java 6/7/8/9 using WebUpd8 team’s PPA

sudo apt-get install -y python-software-properties debconf-utils
sudo add-apt-repository -y ppa:webupd8team/java
sudo apt-get update
echo "oracle-java8-installer shared/accepted-oracle-license-v1-1 select true" | sudo debconf-set-selections
sudo apt-get install -y oracle-java8-installer

OpenJDK

You can use this Java open source installation when Oracle licensing causing limitations.

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

Oracle Java 7 JDK – zip file install

This will treat how to install Oracle Java in Ubuntu. This method does not use any package management software. Use a link in the references section for other options.

Download the 32-bit or 64-bit Linux from “http://www.oracle.com/technetwork/java/javase/downloads/index.html” “compressed binary file” – it has a “.tar.gz” file extension.

Uncompress it

tar -xvf jdk-7u80-linux-x64.tar.gz (32-bit)
tar -xvf jdk-7u80-linux-x64.tar.gz (64-bit)

The JDK 7 package is extracted into ./jdk1.7.0_80 directory.

Now move the JDK 7 directory to /usr/lib

sudo mkdir -p /usr/lib/jvm
sudo mv ./jdk1.7.0_80 /usr/lib/jvm/

Optional: Environment variables

$ sudo vi /etc/environment      #add environment variables system wise, all users
PATH="search/paths:/usr/lib/jvm/jdk-oracle/bin"
JAVA_HOME=/usr/lib/jvm/jdk-oracle

Log log out and log back in, you should have Java available to you now.