Install Java13 on ubuntu 18.04
Oracle Java JDK (Java Development Kit) is a development environment for developing applications and tools based on Java. It is used for testing applications, and program development alike, using the Java programming language.there is another option as open Java JDK / JRE (an open-source alternative) using apt-get repository.
First we will check with openjdk with default packages
Step 1: Install openjdk
root@ubuntu18:~# apt update root@ubuntu18:~ apt install default-jdk
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Now you can check java version by below command.
root@ubuntu18:~# java -version openjdk version "11.0.5" 2019-10-15 OpenJDK Runtime Environment (build 11.0.5+10-post-Ubuntu-0ubuntu1.118.04) OpenJDK 64-Bit Server VM (build 11.0.5+10-post-Ubuntu-0ubuntu1.118.04, mixed mode, sharing)
We hope you are following "How to Install JAVA on Ubuntu 18 04 bionic" step by step carefully. The remaining steps will help you to finish the upgrade process..
Step 2: Install java using oracle jdk using PPA repo
Alternatively, it is possible to install Java on Ubuntu using the official Oracle JDK
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To install Java 13 on Ubuntu 18.04 and you need to add the linux uprising java PPA repository as shown below.
root@ubuntu18:~# apt install software-properties-common root@ubuntu18:~# add-apt-repository ppa:linuxuprising/java
now you can install java. Here i am installing java13 on ubuntu 18.04
root@ubuntu18:~# apt update root@ubuntu18:~# apt install oracle-java13-installer
check java version
root@ubuntu18:~# java --version java 13.0.2 2020-01-14 Java(TM) SE Runtime Environment (build 13.0.2+8) Java HotSpot(TM) 64-Bit Server VM (build 13.0.2+8, mixed mode, sharing)
If you need to set Oracle Java 13 as the default Java version, install the following package if it was not installed.
root@ubuntu18:~# apt install oracle-java13-set-default
Step 3: Setup java environment variables
To set Java home environment variable, you first need to Java installation location by running following command
root@ubuntu18:~# update-alternatives --config java There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1111 auto mode 1 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1111 manual mode * 2 /usr/lib/jvm/java-13-oracle/bin/java 1091 manual mode Press <enter> to keep the current choice[*], or type selection number:
open the /etc/environment configuration file and set Java home environment variable like below.
root@ubuntu18:~# vi /etc/environment
Add below line to above file and save it
To load the environments into the current session, run below command
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root@ubuntu18:~# source /etc/environment
Finally check java home environment variable setting, run the command below
root@ubuntu18:~# echo $JAVA_HOME /usr/lib/jvm/java-13-oracle
That's it. you have successfully installed Java 13 on ubuntu 18.04 server.
Also Read -> how to Install java 13 on centos 8