public class Message {

public final static int INIT = 0;
public final static int ERROR_MSG = 1;
public final static int WARNING_MSG = 2;
public final static int PLAIN_MSG = 3;
public final static int EMPTY = 8;

private final String[] msg = { "Loading . . . , please wait.",
                               "Error: Lambda value is out of range! (0.50 - 5.00)",
                               "Error: Distance value is out of range! (0.50 - 5.00)",
			       "Error: Theta value is out of range! (5.00 - 50.00)",
			       "Error: Input is not a valid number!",
			       "changing lambda . . .",
			       "changing distance . . .",
			       "changing theta . . .",
                               "",
                               "changing values . . ."
                             };
private int msg_code;
private int msg_type;

public Message(int code) {
   msg_code = code;
   setMsgType();
}

public String toString() {
   return msg[msg_code];
}

public void setCode(int code) {
   msg_code = code;
   setMsgType();
}

public int getType() {
   return msg_type;
}

private void setMsgType() {
   switch(msg_code) {
      case 1:
      case 2:
      case 3:
      case 4:
         msg_type = ERROR_MSG;
         break;
      case 0:
         msg_type = INIT;
         break;
      case 5:
      case 6:
      case 7:
      case 9:
         msg_type = PLAIN_MSG;
         break;
      case 8:
         msg_type = EMPTY;
         break;
      default:
         System.out.println("Error: Message.setType --> unknown type");
         msg_type = ERROR_MSG;
   }
}

}