Making a JAR file

1. Copy the .class files into the same folder as jar.exe (search for jar.exe to find it)
If the .class files are in a package, copy the folder with the .class files of the package, not the individual class files.

2. make two text files, "mainClass.txt" and "manifest.txt". In each file, put the text "Main-Class: " + your main class name (including package if applicable). Then press Enter to make a new line.

3. In cmd prompt, navigate to the folder with your .class files and jar.exe. Use cd foldername

4. Type (in cmd prompt) the following: "jar.exe cvfm JarName.jar manifest.txt mainClass.txt *.class"
If you have package classes in a folder, type "FolderName/*.class"

5. Type "JarName.jar" to test your jar file.

Thanks. Came in handy for some of my programs at home @@;

Also you need to run it under administrator on Vista Computers

Chii wrote:Also you need to run it under administrator on Vista Computers

I do it all the time, and I'm not admin...although you might need admin permission to see the files in the Program Files folder.

whats this for again?

a jar file encloses .class files in an executable archive.

Ohhh do i learn this in CS1?