Listing 3: HayesModem.java

public class HayesModem implements Modem
{
   public void dial(String pno){}
   public void hangup(){}
   public void send(char c){}
   public char recv() {return 0;}
   public void accept(ModemVisitor v) 
   {v.visit(this);}

   String configurationString = null;
}
— End of Listing —