1065: Mainline

The Java JAR file has an unfortunate name, inasmuch as archiving is but one of several reasons why you should gather together all your application files into a JAR file. Other reasons include the following:

• JAR files simplify program distribution. You have only one file to move about, rather than a whole directory, or directory hierarchy, full of files.
• JAR files save space and time. You have only one compressed JAR file to store or to ship over the web.
• JAR files provide version management. Each time you reach a stable point in your program, you can create a JAR file.
• JAR files enable security. You can add a digital signature to a JAR file that lessens the chance that a manipulated version will get into the hands of an innocent user.