21 lines
500 B
Java
21 lines
500 B
Java
// containersindepth/FailFast.java
|
|
// ©2016 MindView LLC: see Copyright.txt
|
|
// Demonstrates the "fail-fast" behavior.
|
|
import java.util.*;
|
|
|
|
public class FailFast {
|
|
public static void main(String[] args) {
|
|
Collection<String> c = new ArrayList<>();
|
|
Iterator<String> it = c.iterator();
|
|
c.add("An object");
|
|
try {
|
|
String s = it.next();
|
|
} catch(ConcurrentModificationException e) {
|
|
System.out.println(e);
|
|
}
|
|
}
|
|
}
|
|
/* Output:
|
|
java.util.ConcurrentModificationException
|
|
*/
|