15 lines
411 B
Java
15 lines
411 B
Java
// patterns/trashvisitor/Visitor.java
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// (c)2020 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// The base interface for visitors
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package patterns.trashvisitor;
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public interface Visitor {
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void visit(Aluminum a);
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void visit(Paper p);
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void visit(Glass g);
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void visit(Cardboard c);
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void total();
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}
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