java Main < program.input


CopyVisitor {
   (@

   Stack history;

   void Init(String firstClass) {
      this.history = new Stack();

      try {
         this.history.push(Class.forName(firstClass).newInstance());
      } catch(Exception e) {
         e.printStackTrace();
      }
   }

   Object GetResult() {
      return history.peek();
   }

   @)

   before -> A,b,B (@
      A containingObject = (A)history.peek();
      Class theClass = dest.getClass();
      Object newPartObject = null;

      try {
         newPartObject = theClass.newInstance();
      } catch(Exception e) {
         e.printStackTrace();
      }

      containingObject.set_b((B)newPartObject);
      this.history.push(newPartObject);
   @)

   after -> A,b,B (@
      this.history.pop();
   @)

   before -> A,c,C (@
      A containingObject = (A)history.peek();
      Class theClass = dest.getClass();
      Object newPartObject = null;

      try {
         newPartObject = theClass.newInstance();
      } catch(Exception e) {
         e.printStackTrace();
      }

      containingObject.set_c((C)newPartObject);
      this.history.push(newPartObject);
   @)

   after -> A,c,C (@
      this.history.pop();
   @)

   before C (@
      C theObject = (C)history.peek();

      theObject.set_i(host.get_i());
   @)

   before -> D,a,A (@
      D containingObject = (D)history.peek();
      Class theClass = dest.getClass();
      Object newPartObject = null;

      try {
         newPartObject = theClass.newInstance();
      } catch(Exception e) {
         e.printStackTrace();
      }

      containingObject.set_a((A)newPartObject);
      this.history.push(newPartObject);
   @)

   after -> D,a,A (@
      this.history.pop();
   @)

   before D (@
      D theObject = (D)history.peek();

      theObject.set_s(host.get_s());
   @)

   before CountingVisitor (@
      CountingVisitor theObject = (CountingVisitor)history.peek();

      theObject.set_total(host.get_total());
   @)

}