list of commands to install OpenJDK-8-JDK on ubuntu

. To install OpenJDK ubuntu all you need to do is follow the command in your terminal and get it installed.

Key Features of Java8

Lambda expression − Adds functional processing capability to Java.
Method references − Referencing functions by their names instead of invoking them directly. Using functions as parameter.
Default method − Interface to have default method implementation.
New tools − New compiler tools and utilities are added like ‘jdeps’ to figure out dependencies.
Stream API − New stream API to facilitate pipeline processing.
Date Time API − Improved date time API.
Optional − Emphasis on best practices to handle null values properly.
Nashorn, JavaScript Engine − A Java-based engine to execute JavaScript code.

If you face any errors just let me know. I'll be glad to provide you with solutions. Java 8 is a Long Term Support version and this is the main reason java is in demand. None of us can deploy our company systems on non-LTS java support. If you need longer support then you need to install Java 8 which is quite handy if you have the

Correct list of commands sot install java in Linux

List of commands to install java 8 is listed below

To check the pri-installed Java Version

 $ java -version

Update your linux first

 $ sudo apt-get update && sudo apt-get upgrade

To check the device Architecture

 $ hostnamectl|tail -1

Install aptitude

 $ sudo apt-get install -y aptitude

Search for JDK for Ubuntu using aptitude

 $ sudo aptitude search jdk

Install openjdk-8-jdk openjdk-8-jre

 $ sudo apt install openjdk-8-jdk openjdk-8-jre

Set openjdk-8-jre as default version

 $ sudo apt install openjdk-8-jdk openjdk-8-jre -set-default

Again update and upgrade your device

 $ sudo apt-get update && sudo apt-get upgrade

Verify java version if it says 11 run another command

 $ java -version

Hit command below and select option for java 8

 $ sudo update-alternatives --config java

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