17 lines
532 B
Java
17 lines
532 B
Java
// validating/CountedList.java
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// (c)2016 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://mindviewinc.com/Books/OnJava/ for more book information.
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// Keeps track of how many of itself are created.
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package validating;
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import java.util.*;
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public class CountedList extends ArrayList<String> {
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private static int counter = 0;
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private int id = counter++;
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public CountedList() {
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System.out.println("CountedList #" + id);
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}
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public int getId() { return id; }
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}
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