import java.io.IOException;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class ZipTest {
    public void list(String file) {

        try {
          /* the default file is test.zip */
          if (file == null) {
              file = "test.zip";
          }
            ZipFile zipFile = new ZipFile(file);
            Enumeration zipEntries = zipFile.entries();

            while (zipEntries.hasMoreElements())
                System.out.println(((ZipEntry)zipEntries.nextElement()).getName());

        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    public static void main(String[] args) {
      String file = null;
      /* use the first parameter as the input zip file */
      if (args.length > 0)
          file = args[0];
        new ZipTest().list(file);
    }
}