Users interested in Mx player java app .jar generally download:
Plays video, audio and DVD files without the need to install any codecs. It supports subtitles and numerous multimedia formats like MPEG4, DIVX, XVID, FLV, MOV, MP3, WAV, WMA, AAC, etc.
MyJarExplorer is a program that will let you view and edit Java .jar files. If you have associated the .JAR extension with this program, it will open when you double click on any Java .jar file. It will run a .bat where it will start the program from a command prompt.