21 lines
546 B
Java
21 lines
546 B
Java
// patterns/shapes/Shape.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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package patterns.shapes;
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public class Shape {
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private static int counter = 0;
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private int id = counter++;
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@Override public String toString() {
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return
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getClass().getSimpleName() + "[" + id + "]";
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}
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public void draw() {
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System.out.println(this + " draw");
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}
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public void erase() {
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System.out.println(this + " erase");
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}
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}
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