import java.util.Observer;
import java.util.Observable;
public class TextObserver implements Observer
{
   String fieldname = null;
   private SubjectValue sv = null;

   public TextObserver(String fieldname, SubjectValue sv)
   {
      this.fieldname = fieldname;
      this.sv = sv;
   }

   public void update(Observable obs, Object obj)
   {
      if (obs == sv)
      {
         if (this.fieldname == "text2")
         {
             ....setText2(sv.getValue()); // set text to a textfield in the main class
         }
         else if (this.fieldname == "text3")
         {
             ....setText3(sv.getValue()); // set text to a textfield in the main class
         }
      }
   }
}