Install OpenJDK (Java) on the latest Ubuntu

Java installation

For Ubuntu, you can install it with the  Ľapt` command. If you just want to run Java, read the chapter "** Java users only (JRE) ", and developers should read the chapter " Developers (JDK) **".

environment

We have confirmed the operation in the following environment.

Java users only (JRE)

Search for OpenJDK version

terminal


$ sudo apt search openjdk-\(\.\)\+-jre$

Install any version. Java 8 is selected here.

terminal


$ sudo apt-get install openjdk-8-jre

Finally, make sure Java is installed.

terminal


#java version check
$ java -version
openjdk version "1.8.0_162"
OpenJDK Runtime Environment (build 1.8.0_162-8u162-b12-1-b12)
OpenJDK 64-Bit Server VM (build 25.162-b12, mixed mode)

Developer (JDK)

Search for developer versions of OpenJDK

terminal


$ sudo apt search openjdk-\(\.\)\+-jdk$

Install any version. Java 8 is selected here.

terminal


$ sudo apt install openjdk-8-jdk

Make sure it was last installed. If you have installed the JDK, you will be able to use the javac command.

terminal


#java version check
$ java -version
openjdk version "1.8.0_162"
OpenJDK Runtime Environment (build 1.8.0_162-8u162-b12-1-b12)
OpenJDK 64-Bit Server VM (build 25.162-b12, mixed mode)

#Check if the JDK is installed
$ javac -version
javac 1.8.0_162

Finally

If you want to install a version that is not in  Ľapt`, please follow the steps on the official OpenJDK website below.

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