The basic format of the command for creating a JAR file is:
jar cf jar-file input-file(s)
Let's look at the options and arguments used in this command:
The c option indicates that you want to create a JAR file.
The f option indicates that you want the output to go to a file rather than to stdout.
jar-file is the name that you want the resulting JAR file to have. You can use any filename for a JAR file. By convention, JAR filenames are given a .jar extension, though this is not required.