A JAR file is nothing more than a "standard" .ZIP file. Use a zip-based program, put all your class files and resources inside a .ZIP file. when done, rename it to .JAR.

Windows ME/XP/2003 have built in ZIP file support. It is therefore, very easy to make and extract ZIP files using these operating systems.

Windows 95/98/2000 does not have have built in ZIP file support. It is therefore necessary to use a 3rd party software to create and extract ZIP files. I will base this tutorial on a popular Zip ...