Sudo update-alternatives -install /usr/bin/javac javac /usr/lib/jvm/jdk-12.0.1/bin/javac 2 Sudo update-alternatives -install /usr/bin/jar jar /usr/lib/jvm/jdk-12.0.1/bin/jar 2

Next, run the following commands to make the latest version of Java to be the default Java compiler for your Ubuntu desktop.If you don’t have other versions of Java installed, then the commands will not return anything. Suppose you have other versions of Java installed and you ran the commands above, you should see a prompt to select the version of Java you want to make the default. Sudo update-alternatives -install /usr/bin/java java /usr/lib/jvm/jdk-12.0.1/bin/java 2 The commands below configure Ubuntu to use Java alternatives. After that, run the commands below to configure Java 12.0.1 as the default on Ubuntu.Now that you’ve downloaded the correct archive package for your system, run the commands below to install JDK on Ubuntu.

Wget -no-cookies -no-check-certificate -header 'Cookie: oraclelicense=accept-securebackup-cookie'

You can also easily install DEB package by running the commands below.

Head to the Menu button on the top-left corner of the screen (which looks like 3 short lines stacked on top of each other) and proceed to Products > Java > Download Java (JDK) for Developers.

To install JDK on Ubuntu, first, log in to the Oracle Official Website.

Method 2: Download & Install Java/JDK on Ubuntu using the deb package.

Method 1: Download & Install Java/JDK on Ubuntu using the tarball.

So, if you follow these few simple steps, you should be able to download and install JDK on your Operating Systems, completely hassle-free. However, this article is focused on two fool-proof methods to download Java from its original repository instead of the opensource version of via third-party. There are plenty of tutorials out there that may show you how to get Java installed via third-party PPA tools. You could also install Open Java JDK / JRE (an open-source alternative) using the apt-get command, pretty easily. This is essential for any professional looking into an opportunity in. This is going to be a brief guide for beginners on how to download and install java on Ubuntu 18.04. It is a versatile kit which can be used for testing applications, and program development alike, using the Java programming language. Oracle Java JDK (Java Development Kit) is a development environment for developing applications and tools based on Java.

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