How to set path in Java?

Data Science, AI and ML
#1

Windows 10 and Windows 8

  • In Search, search for and then select: System (Control Panel)
  • Click the Advanced system settings link.
  • Click Environment Variables. In the section System Variables, find the PATH environment variable and select it. Click Edit. If the PATH environment variable does not exist, click New.
  • In the Edit System Variable (or New System Variable) window, specify the value of the PATH environment variable. Click OK. Close all remaining windows by clicking OK.
  • Reopen Command prompt window, and run your java code.

Mac OS X
To run a different version of Java, either specify the full path or use the java_home tool:

% /usr/libexec/java_home -v 1.8.0_73 –exec javac -version

Solaris and Linux

To find out if the path is properly set:
In a terminal windows, enter:
% java -version
This will print the version of the java tool, if it can find it. If the version is old or you get the error java: Command not found, then the path is not properly set.
Determine which java executable is the first one found in your PATH
In a terminal window, enter:
% which java