import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.security.MessageDigest;
import java.util.Formatter;


public class MD5Checksum {

	public static void main(String[] args) {
		
		MD5Checksum md5checksum = new MD5Checksum();
		File file = new File(".");
		md5checksum.runthrough(file);
		
	}
	
	public void runthrough(File file)
	{
		
		
		File[] filesInDir = file.listFiles();
		for(int i=0; i<filesInDir.length; i++)
		{
			byte[] data = new byte[1088];
			File currentFile = filesInDir[i];
			if (currentFile.isFile())
			{
				try {
					(new FileInputStream(currentFile)).read(data);
					String md5check = getMD5Hash(data);
					System.out.println(currentFile.getAbsolutePath()+"  : "+md5check);
				} catch (FileNotFoundException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
			else
				runthrough(currentFile);
		}
		
	}
	
	
    public String getMD5Hash(byte[] datei) {
        StringBuffer result = new StringBuffer(32);
        try {
            MessageDigest md5 = MessageDigest.getInstance("MD5");
            md5.update(datei);
            Formatter f = new Formatter(result);
            for (byte b : md5.digest()) {
                f.format("%02x", b);
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return result.toString();
    }
    
    
    

}