JavaZip CRC32.update( byte[] b, int off, int len) JavaZip CRC32.update() JavaZip CRC32.update( int b ) JavaZip CRC32.update( byte[] b, int off, int len) package com.codingdict; import java.util.zip.CRC32; import java.util.zip.Checksum; public class CRC32Demo { public static void main(String[] args) { String message = "Welcome to codingdict.com"; byte bytes[] = message.getBytes(); Checksum checksum = new CRC32(); checksum.reset(); checksum.update(bytes,0,bytes.length); long checksumValue = checksum.getValue(); System.out.println("CRC32 checksum :" + checksumValue); } } JavaZip CRC32.update() JavaZip CRC32.update( int b )