//: c17:trashvisitor:Visitor.java
// From Thinking in Java, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// The base interface for visitors
package c17.trashvisitor;
import c17.trash.*;

interface Visitor {
  void visit(VAluminum a);
  void visit(VPaper p);
  void visit(VGlass g);
  void visit(VCardboard c);
} ///:~