Transfer directory from ran java file to external jar

[HansiHE]

Anyone have any idea how I can copy a directory from the jar file the user ran, to another external jar file? I have already completed a nice GUI, but I cant seem to figure out how to do this. Any hints?

[Fubarable]

Please tell the details: exactly what are you trying to do, and perhaps more importantly, why?

[Norm]

how I can copy a directory from the jar file the user ran, to another external jar file

Do you mean you want to copy the files that are in a directory in the jar file where the program is executing code to another jar file?

See the API doc for the JarFile and JarOutputStream classes for ideas.

[HansiHE]

What I want to do, is inject a folder of resources(classes, pictures, etc) from a folder in the ran jar file, into another jar file.

[Norm]

Sorry, I don't understand what it means to "inject a folder"?
Do you mean to copy the contents of a folder in one jar file into another jarfile? Does the other jar file already exist or will it be created? Is the "ran" jar file where the executing code is coming from?

For reading and writing jar files see the JarFile and JarOutputStream classes and the java.util.zip package classes.

[HansiHE]

I understand everything except one thing:
I cant make it only extract from one directory. Anyone know any way of reading from only one directory?

[Norm]

Look at the ZipEntry name. I think that contains the directory name.