Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.FileInputStream;

import java.io.IOException;

import java.security.MessageDigest;

public class Main {
    public static byte[] createMD5(FileInputStream is) throws IOException {
        MessageDigest digester = null;
        try {
            digester = MessageDigest.getInstance("MD5");
            byte[] buffer = new byte[16 * 1024]; // 16k
            int length = 0;
            while ((length = is.read(buffer)) > 0) {
                digester.update(buffer, 0, length);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            is.close();
        }

        if (digester != null) {
            return digester.digest();
        }

        return null;
    }
}