public class And extends Porte2Entrees{
      /*void run(){
  	s=in1 && in2;
      }
      void display(){
      }*/
      /*public boolean getEtat() throws NonConnecteException {

  	if ((in1 == null) || (in2 == null)) {
  	    throw new NonConnecteException();

  	} else {
  	    s=(in1.getEtat() && in2.getEtat());

  	    return s;
  	}

      }*/
  
      public boolean eval()throws NonConnecteException {

  	return (in1.getEtat() & in2.getEtat());			

      }
  }