The following command enables you to run any Java JAR file on the command line: java -jar jarfilename.jar. To use the JAR file opener that comes when you install Java with the JDK, just issue the ...

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, ...