Here are the three easiest ways to fix Java’s “not recognized as an internal or external command” error: Install or reinstall Java and the JDK on your computer Add Java’s bin directory to the computer ...

default-java java-21-openjdk-amd64. Ubuntu's JDK install folder. The default-java folder is a symbolic link to the actual location of the JDK install on Ubuntu. When you reference the JDK install ...