import sun.misc.*;
import java.io.*;


public class CRCCalculator {


  public static void main(String[] args) {

    CRC16 myCRC = new CRC16();
    int b = 0;

    for (int i=0; i < args.length; i++) { 
 //     int len = 0;    
      try {
        FileInputStream fis = new FileInputStream(args[i]);
        while ((b = fis.read()) != -1) {
       //   System.err.println(len++ + ":" + (char) b);
          myCRC.update((byte) b);
        }
        System.out.println(args[i] + " CRC: " + myCRC.value);
      }
      catch (IOException e) {
        System.err.println("Error reading file " + args[i] + "\n" + e);
      }

      myCRC.reset();
   }

  }

}