Here you can find the source of getCheckSums(String archiveFile)
public static Map<String, Long> getCheckSums(String archiveFile) throws IOException
//package com.java2s; /*// w ww .ja va 2s .c om * Copyright 2013 Cloud4SOA, www.cloud4soa.eu * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.*; import java.util.*; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; public class Main { public static Map<String, Long> getCheckSums(String archiveFile) throws IOException { Map<String, Long> checkSums = new HashMap<String, Long>(); ZipFile zipFile = new ZipFile(archiveFile); Enumeration<? extends ZipEntry> e = zipFile.entries(); while (e.hasMoreElements()) { ZipEntry entry = e.nextElement(); checkSums.put(entry.getName(), entry.getCrc()); } return checkSums; } }