After you set JAVA_HOME in Windows, it's a good idea to verify the change has persisted. The easiest way to do this is to echo JAVA_HOME in a command prompt or a Bash shell. To echo JAVA_HOME in a DOS ...

Go to Java's "Verify Java Version" web page. 2. Click on the "Verify Java version" button to check which version of Java your computer currently has installed and whether or not you need to update it.

1. The Java compiler: javac. The javac utility is the most important command-line interface tool you will find in the JDK's bin directory. This is the Java compiler, and whether you use Maven, Gradle, ...