23 lines
690 B
Java
23 lines
690 B
Java
// patterns/trash/Trash.java
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// (c)2021 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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// Base class for Trash recycling examples.
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package patterns.trash;
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public abstract class Trash {
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public final double weight;
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public Trash(double weight) {
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this.weight = weight;
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}
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public abstract double price();
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@Override public String toString() {
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return String.format(
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"%s weight: %.2f * price: %.2f = %.2f",
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getClass().getSimpleName(),
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weight, price(), weight * price());
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}
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// Ignore for now; to be used later:
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public abstract void accept(Visitor v);
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}
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