Hello Friend,

Try the following code:

import java.io.*; import java.security.MessageDigest;

public class Compute{ public static void main(String[]args)throws Exception{ int by = 16384; try { RandomAccessFile file = new RandomAccessFile("data.txt", "r"); MessageDigest md = MessageDigest.getInstance("SHA-256");

    byte[] buffer = new byte[by];
    byte[] bytes = null;

    long read = 0;
    long offset = file.length();
    int size;
    while (read < offset) {
            size = (int) (((offset - read) >= by) ? by : (offset - read));
            file.read(buffer, 0, size);
            md.update(buffer, 0, size);
            read += size;
    }
    file.close();
    bytes = new byte[md.getDigestLength()];
    bytes = md.digest();
    System.out.println(read);
    } 
   catch (Exception e) {
   System.out.println(e);

} } }

Hope that it will be helpful for you.

Thanks

Hello Friend,

import java.io.*;
import java.security.MessageDigest;

public class Compute{
    public static void main(String[]args)throws Exception{
int by = 16384;
try {
        RandomAccessFile file = new RandomAccessFile("data.txt", "r");
        MessageDigest md = MessageDigest.getInstance("SHA-256");

        byte[] buffer = new byte[by];
        byte[] bytes = null;

        long read = 0;
        long offset = file.length();
        int size;
        while (read < offset) {
                size = (int) (((offset - read) >= by) ? by : (offset - read));
                file.read(buffer, 0, size);
                md.update(buffer, 0, size);
                read += size;
        }
        file.close();
        bytes = new byte[md.getDigestLength()];
        bytes = md.digest();
        System.out.println(read);
        } 
       catch (Exception e) {
       System.out.println(e);
}
    }
}

Thanks