Referring to Ask Ubuntu question How to set JAVA_HOME for OpenJDK?,
How to install Open JDK
(Java developement kit) in Ubuntu (Linux)?
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Open Terminal from Application Dash or press Ctrl+Alt+T
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Update repository:
sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and earlier sudo apt update
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Optional: To search available distributions of
openjdk
, use the following command:apt search openjdk
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Install the appropriate version with the following command:
sudo apt install openjdk-8-jdk sudo apt install openjdk-8-source #this is optional, the jdk source code
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For
JAVA_HOME
(Environment Variable) type command as shown below, in “Terminal” using your installation path…export JAVA_HOME=/usr/lib/jvm/java-8-openjdk
(Note:
/usr/lib/jvm/java-8-openjdk
is symbolically used here just for demostration. You should use your path as per your installation.) -
For
PATH
(Environment Variable) type command as shown below, inTerminal
:export PATH=$PATH:$JAVA_HOME/bin
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To check your installation:
java -version