How to set java_home on Windows?
If you want to set JAVA_HOME environment variables globally and at system level means use should set in /etc/environment file.
First open /etc/environment file and place following code anywhere of the file.
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... export JAVA_HOME=/usr/lib/jvm/java-[version] ... |
Here, [version] may changeable as per your Java Version. You can check like below commands,
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$ echo $JAVA_HOME $ /usr/lib/jvm/java-[version] |
After set the JAVA_HOME variable, you should update and execute in every shell using following code,
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$ source /etc/environment |
If you want to set JAVA_HOME environment variable in only the terminal, set it in ~/.bashrc file.
For Ubuntu, Open the ~/.bashrc file and put the below code at anywhere of the file,
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... export JAVA_HOME=/usr/lib/jvm/java-[version] ... |
Here, [version] may changeable as per your Java Version.
Based on Jilles van Gurp, for Java optional package with other OSX things, use following method in same file ~/.bashrc,
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export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)" or export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)" |
Here, -v flag based on Jilles van Gurp response and 1.8 / 1.7 are the versions of jdk.
How to set java_home environment variable in windows? See Here.