Sion> (jar) A compreSSed archive file containing JavaclaSS fileS, filename extenSion: ".jar". The Java Development Kit containS a tool called "jar" for creating .jar fileS, Similar to the Standard Unixtar command. AS well aS archiving and compreSSing the Java claSS fileS, it alSo inSertS a "manifeSt" file which can contain information about the claSS fileS, Such aS a {digital Signature}. Combining claSS fileS into a Single archive file makeS it poSSible to download them in a Single HTTP tranSaction. ThiS, and the compreSSion, SpeedS up execution of Java programS delivered via the Internet. (2001}-02-03)
