NavigableMap.floorKey

Returns the greatest key less than or equal to the given key, or {@code null} if there is no such key.

@param key the key @return the greatest key less than or equal to {@code key}, or {@code null} if there is no such key @throws ClassCastException if the specified key cannot be compared with the keys currently in the map @throws NullPointerException if the specified key is null and this map does not permit null keys

interface NavigableMap(K, V)
K
floorKey
(
K key
)

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