Jun
06
2016
By abernal
In order to install the Java 8 SDK, we can follow two procedures
First Option
1. Add the repository to get openjdk
sudo add-apt-repository ppa:openjdk-r/ppa
2. Update the repositories
sudo apt-get update
3. Install the openjdk-8-jdk
sudo apt-get install openjdk-8-jdk
4. Configure java
sudo update-alternatives --config java
5. Configure javac
sudo update-alternatives --config javac
Second Option
1. Get the jdk tar gz file
wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u5-b13/jdk-8u5-linux-x64.tar.gz
2. Become root in your machine
sudo su
3. make a directory /opt/jdk
mkdir /opt/jdk
4. untar the downloaded file
tar -zxf jdk-8u5-linux-x64.tar.gz -C /opt/jdk
5. verify that the files are within the already created directory
ls /opt/jdk
6. Update the alternatives to link java command to the jdk directory
update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_05/bin/java 100
7. Update the alternatives to link javac command to the jdk directory
update-alternatives --install /usr/bin/javac javac /opt/jdk/jdk1.8.0_05/bin/javac 100
8. Verify to which directory does the java command is pointing to
update-alternatives --display java
9. Verify to which directory does the javac command is pointing to
update-alternatives --display javac