import java.io.IOException;
import java.util.Enumeration;
import java.util.jar.Attributes;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
public class MainClass {
public static void main(String[] args) throws IOException {
JarFile jf = new JarFile(args[0]);
Enumeration e = jf.entries();
while (e.hasMoreElements()) {
JarEntry je = (JarEntry) e.nextElement();
String name = je.getName();
Attributes a = je.getAttributes();
if (a != null) {
Object[] nameValuePairs = a.entrySet().toArray();
for (int j = 0; j < nameValuePairs.length; j++) {
System.out.println(nameValuePairs[j]);
}
}
}
}
}