Let's explore which other packages we have at our disposal besides the default jdk package: $ apt list openjdk-11* Listing. Let's have a look at the “Depends” section of the output.
We can see that if we inspect the package: $ apt show openjdk-11-jdk
It's also worth noting that although the package is called openjdk-11-jdk, as of this writing, it actually installs version 10.0.2. Now we should see the same version number as shown above: javac 1.8.0_181 3.2. Let's check that the javac executable is available as well: $ javac -version OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode) The result should list a Runtime Environment and a JVM: openjdk version "1.8.0_181" Now, let's verify the installation: $ java -version
Java openjdk 1.8 install#
Let's install OpenJDK 8 from the “Main” repository with apt: $ sudo apt update It's supported by Canonical - the same company that maintains Ubuntu itself. The “Main” repository is available by default on all Ubuntu systems. Of course, we can also head to the OpenJDK website, grab a package there, and install it the same way we've seen in the previous section.īut using the apt tooling and the “Main” repository provides some benefits. For this reason, we can find an up-to-date version of OpenJDK 8 in the “Main” repository on most of the supported Ubuntu versions. JDK 8 is an LTS version that has been around for a while.
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