package dw_synch;
import java.io.*;
public class Synch {
private static String strSource = "C:\\source";
private static String strTarget = "D:\\target";
public static void main(...

I have more than onw suggestions for you.

1) instead of checking if it is a letter or a special character. you could check if it is a number between 0 to 9 so if all the characters are numbers you...

OK First of all you have to find out what scanner class does. I suggest you check java specifications. best place you check is java specifications (http://java.sun.com/javase/6/docs/api/index.html)....