cutString

public static String cutString(String str, int len) { 

  byte[] by = str.getBytes();
  int count = 0;
  try  {
   for(int i = 0; i < len; i++) {
    if((by[i] & 0x80) == 0x80) count++;
   }
   if((by[len - 1] & 0x80) == 0x80 && (count % 2) == 1) len--;
   return new String(by, 0, len);   
  }
  catch(java.lang.ArrayIndexOutOfBoundsException e)
  {
   System.out.println(e);
   return "";
  }
 }