Generate jar from classes through java code - not commandline in eclipse

Question

How can I convert the commandline:

jar -cf myfile.jar *.class

to java code in Eclipse?

I hava all the classes pathes in the string. I need to generate jar at runtime.

Answer 1

First, you can create your command line and run it from java using either Runtime.getRuntime().exec(cmd) or using ProcessBuilder .

Second, jar is just a zip file. You can create it using either ZipOutputStream or JarOutputStream