How to install JDK in Ubuntu

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In this tutorial, I am going to show you how to install Java on Linux machine.
To learn Java of-course first thing you need to install Jdk, so lets start the installation.

Steps to install JDK on Linux

Step 1. Go to the Oracle official site (http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html) accept the license and download the appropriate product from the above link.

Step 2. Extract the tar file downloaded from the above link, below is the syntax to extract the tar file

tar -xzf jdk-8u65-linux-x64.tar.gz 

Step 3. Set the JAVA_HOME environment variable using below command type the below syntax on terminal.

export JAVA_HOME=/home/ubuntu/Softwares/jdk1.8.0_65(installed jdk path)
export PATH=${PATH}:${JAVA_HOME}/bin

or
Open .bashrc and .profile file and set the JAVA_HOME with below commands on terminal-
i. Type vi ~/.bashrc it will open a vi editor, of-course you can open in any editor like gedit,nano etc.
ii. Place this

export JAVA_HOME=/home/ubuntu/Softwares/jdk1.8.0_65(installed jdk path)
export PATH=${PATH}:${JAVA_HOME}/bin

inside the .bashrc file opened with point i.
iii. Type source ~/.bashrc on your terminal

Also repeat the same points from i to ii to set path in .profile file
and done.

Step 4. To verify your java is installed properly or not you can type java -version it will print the installed java details and see the installed path type echo $JAVA_HOME on your terminal.

Here is the output of the above commands if java installed successfully.

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