Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.security.DigestInputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static String getMD5(String file) {
        String md5 = "";

        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            InputStream is;
            is = new FileInputStream(file);

            DigestInputStream dis = new DigestInputStream(is, md);
            byte data[] = new byte[1024];
            @SuppressWarnings("unused")
            int count;
            while ((count = dis.read(data)) != -1) {

            }
            byte[] digest = md.digest();

            for (int i = 0; i < digest.length; i++) {
                md5 += Integer.toString((digest[i] & 0xff) + 0x100, 16).substring(1);
            }
            return md5;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return md5;
    }
}