Installing Java 8 on Ubuntu

Install Java 8 on Ubuntu:

  1. Create a folder to put JDK

    mkdir /opt/jdk  
    cd /opt
    
  2. Download the latest JDK:

    wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u152-b16/aa0333dd3019491ca4f6ddbe78cdb6d0/jdk-8u152-linux-x64.tar.gz
    
  3. Extract it

    tar -zxf jdk-8u152-linux-x64.tar.gz -C /opt/jdk
    
  4. Set it as default

    update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_152/bin/java 100  
    update-alternatives --install /usr/bin/javac javac /opt/jdk/jdk1.8.0_152/bin/javac 100