import java.util.*; import java.util.zip.*; import java.io.*; public class FancyZipLister { public static void main(String[] args) { for (int i = 0; i < args.length; i++) { try { ZipFile zf = new ZipFile(args[i]); Enumeration e = zf.entries(); while (e.hasMoreElements()) { ZipEntry ze = (ZipEntry) e.nextElement(); String name = ze.getName(); Date lastModified = new Date(ze.getTime()); long uncompressedSize = ze.getSize(); long compressedSize = ze.getCompressedSize(); long crc = ze.getCrc(); int method = ze.getMethod(); String comment = ze.getComment(); if (method == ZipEntry.STORED) { System.out.println(name + " was stored at " + lastModified); System.out.println("with a size of " + uncompressedSize + " bytes"); } else if (method == ZipEntry.DEFLATED) { System.out.println(name + " was deflated at " + lastModified); System.out.println("from " + uncompressedSize + " bytes to " + compressedSize + " bytes, a savings of " + (100.0 - 100.0*compressedSize/uncompressedSize) + "%"); } else { System.out.println(name + " was compressed using an unrecognized method at " + lastModified); System.out.println("from " + uncompressedSize + " bytes to " + compressedSize + " bytes, a savings of " + (100.0 - 100.0*compressedSize/uncompressedSize) + "%"); } System.out.println("Its CRC is " + crc); if (comment != null && !comment.equals("")) { System.out.println(comment); } if (ze.isDirectory()) { System.out.println(name + " is a directory"); } System.out.println(); } } catch (IOException e) { System.err.println(e); } } } }