The Java Interpreter path is set based on the location of the Java file on your computer (for example C:\Program Files\Java\jre1.8.0_51\bin\java.exe).
To customize your Java Interpreter path:
If needed, click the Talend node in the tree view of the [Preferences] dialog box.
Enter a path in the Java interpreter field if the default directory does not display the right path.
On the same view, you can also change the preview limit and the path to the temporary files or the OS language.