23 lines
645 B
Java
23 lines
645 B
Java
// understandingcollections/FailFast.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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// Demonstrates the "fail-fast" behavior
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import java.util.*;
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public class FailFast {
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public static void main(String[] args) {
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Collection<String> c = new ArrayList<>();
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Iterator<String> it = c.iterator();
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c.add("An object");
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try {
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String s = it.next();
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} catch(ConcurrentModificationException e) {
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System.out.println(e);
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}
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}
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}
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/* Output:
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java.util.ConcurrentModificationException
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*/
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