ZipEntry: getCrc()
import java.util.Enumeration; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; public class Main { public static void main(String[] args) throws Exception { ZipFile zf = new ZipFile("your.zip"); Enumeration e = zf.entries(); while (e.hasMoreElements()) { ZipEntry ze = (ZipEntry) e.nextElement(); String name = ze.getName(); long crc = ze.getCrc(); System.out.println("Its CRC is " + crc); String comment = ze.getComment(); if (comment != null && !comment.equals("")) { System.out.println(comment); } if (ze.isDirectory()) { System.out.println(name + " is a directory"); } } } }