Read classes in a Zipfile

zip.java

      try {
        ZipFile zipFile = new ZipFile(jarFile);
        for (Enumeration<? extends ZipEntry> entries = zipFile.entries();
            entries.hasMoreElements(); ) {
          String name = entries.nextElement().getName();
          System.out.println("entry: " + name);
        }
      } catch (IOException e) {
        throw new RuntimeException(e);
      }