# | Line 52 | Line 52 | package java.util; | |
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52 | * of this interface are encouraged to override these methods to return | |
53 | * {@code NavigableMap}. Similarly, | |
54 | * {@link #keySet()} can be overriden to return {@code NavigableSet}. | |
55 | < | * |
55 | > | * |
56 | * <p>This interface is a member of the | |
57 | * <a href="{@docRoot}/../technotes/guides/collections/index.html"> | |
58 | * Java Collections Framework</a>. |
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