# | Line 29 | Line 29 | package java.util; | |
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29 | * Methods <tt>navigableSubMap</tt>, <tt>navigableHeadMap</tt>, and | |
30 | * <tt>navigableTailMap</tt> differ from the similarly named | |
31 | * <tt>SortedMap</tt> methods only in their declared return types. | |
32 | < | * Submaps of any <tt>NavigableMap<tt> must implement the |
32 | > | * Submaps of any <tt>NavigableMap</tt> must implement the |
33 | * <tt>NavigableMap</tt> interface. | |
34 | * | |
35 | * <p>This interface additionally defines methods <tt>firstEntry</tt>, |
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