Installing Java 8 on AWS EC2 Amazon Linux instance

Today we are going to install Java 8 (JDK 8, I must say from the developer's perspective) in an Amazon EC2 instance which is having an Amazon Linux version installed in it. In a nutshell we can say that, Amazon Linux can be considered equivalent to CentOS 6.

I am not going to eat your time and jumping directly towards the commands that you have to execute to install JDK 8 on your new instance. Before we start, please ensure you have the administrative privileges. OK.. So, you have to execute the following commands as mentioned below.

Installing Java 8

$ cd /opt

$ sudo wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u151-b12/e758a0de34e24606bca991d704f6dcbf/jdk-8u151-linux-x64.tar.gz

$ sudo tar xzf jdk-8u151-linux-x64.tar.gz

$ cd jdk1.8.0_151/

$ sudo alternatives --install /usr/bin/java java /opt/jdk1.8.0_151/bin/java 2

$ sudo alternatives --config java

There are 2 programs which provide 'java'.

  Selection    Command

-----------------------------------------------

*+ 1           /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java

   2           /opt/jdk1.8.0_151/bin/java

Enter to keep the current selection[+], or type selection number: 2 

(If you are getting some other options as well, choose the one with "/opt/jdk1.8.0_151/bin/java")

$ sudo alternatives --install /usr/bin/jar jar /opt/jdk1.8.0_151/bin/jar 2

$ sudoalternatives --set jar /opt/jdk1.8.0_151/bin/jar

$ sudo alternatives --set javac /opt/jdk1.8.0_151/bin/javac

Check Java version 

$ java -version

java version "1.8.0_151"

Java(TM) SE Runtime Environment (build 1.8.0_151-b12)

Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)

Setting environment variables.

# vim /etc/profile

export JAVA_HOME=/opt/jdk1.8.0_151

export JRE_HOME=/opt/jdk1.8.0_151/jre

export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

Congratulations!! You did it.. :)

Do share your thoughts if you have any query, suggestion. 

Thanks!!