Install Oracle JDK on Ubuntu

October 03, 2015 by Sandeep Bhardwaj | Tags: Ubuntu Java

1) Download the jdk-8u60-linux-x64.tar.gz from the Oracle site (Download 64bit or 32bit based on your linux environment).

2) If you have root access then install java system-wide inside /usr/local directory.

First create a directory named java inside /usr/local

sandeep@vivan:~$ sudo mkdir /usr/local/java/

after that change directory

sandeep@vivan:~$ cd /usr/local/java/

Note: If you do not have access to root then install java inside your home directory.

3) Unpack the tarball and install Java

sandeep@vivan:/usr/local/java$ sudo tar zxvf ~download/jdk-8u60-linux-x64.tar.gz

The Java files are installed in a directory /usr/local/java/jdk1.8.0_60/

4) Install the new Java source in system:

sudo update-alternatives --install /usr/bin/javac javac /usr/local/java/jdk1.8.0_60/bin/javac 1
sudo update-alternatives --install /usr/bin/java java /usr/local/java/jdk1.8.0_60/bin/java 1
sudo update-alternatives --install /usr/bin/javaws javaws /usr/local/java/jdk1.8.0_60/bin/javaws 1

5) Choose default Java:

sudo update-alternatives --config javac
sudo update-alternatives --config java
sudo update-alternatives --config javaws

6) Check the Java version:

java -version

Output

java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

7) Verify the symlinks all point to the new Java location:

ls -la /etc/alternatives/java*

Output

lrwxrwxrwx 1 root root 36 Sep 24 19:27 /etc/alternatives/java -> /usr/local/java/jdk1.8.0_60/bin/java
lrwxrwxrwx 1 root root 37 Sep 24 15:00 /etc/alternatives/javac -> /usr/local/java/jdk1.8.0_60/bin/javac
lrwxrwxrwx 1 root root 38 Sep 24 15:06 /etc/alternatives/javaws -> /usr/local/java/jdk1.8.0_60/bin/javaws

Note: For Setting Java HOME on Ubuntu follow the post