How to create a Jar file that can be run like this way:
  java -jar jar_file.name
  java -jar hanoi.jar


<applet code="HAHAHA.class" archive="hanoi.jar"
      width=500  height=500>


(1) prepare all class files
(2) create a file named MANIFEST.MF  (or other name)
    jar cvfm jarfile.jar MANIFEST.MF *

 Note that the MANIFEST.MF should have correct format
 For example: (­«ÂI¦b Main-Class: HAHAHA  )

Manifest-Version: 1.0
Created-By: 1.5.0_03 (Sun Microsystems Inc.)
Main-Class: HAHAHA