# | Line 27 | Line 27 | import java.util.*; | |
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27 | * </ul> | |
28 | * | |
29 | * <p> <b>Sample Usage.</b> The following code sketch uses a | |
30 | < | * copy-on-write set to maintain a set of Handler objects that |
31 | < | * perform some action upon state updates. |
30 | > | * copy-on-write set to maintain a set of Handler objects that |
31 | > | * perform some action upon state updates. |
32 | * | |
33 | * <pre> | |
34 | * class Handler { void handle(); ... } |
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