How to set JAVA_HOME environment variable on Mac OS X 10.9?

If you’re using bash, all you have to do is:

echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile

If you’re using zsh (which probably means you’re running macOS Catalina or newer), then it should instead be:

echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.zshrc

In either case, restart your shell.

If you have multiple JDK versions installed and you want it to be a specific one, you can use the -v flag to java_home like so:

echo export "JAVA_HOME=\$(/usr/libexec/java_home -v 1.7)" >> ~/.bash_profile

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