Calculating the Checksum of a File : Zip Tar File « File Input Output « Java

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Java » File Input Output » Zip Tar File

Calculating the Checksum of a File


       



import java.io.FileInputStream;

import java.util.zip.Adler32;

import java.util.zip.CheckedInputStream;



public class Main {

  public static void main(String[] argv) throws Exception {

    CheckedInputStream cis = new CheckedInputStream(new FileInputStream("filename"), new Adler32());

    byte[] tempBuf = new byte[128];

    while (cis.read(tempBuf) >= 0) {

    }

    long checksum = cis.getChecksum().getValue();

  }

}

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