TreeMap lowerKey(K key) method in java

Let’s learn TreeMap lowerKey(K key) method in java. TreeMap lowerKey(K key) method in java lowerKey(K key) method of TreeMap class returns the greatest key strictly less than the given key, or null if there is no such key. Syntax: public K lowerKey(K key) Parameters: key the key. Throws: ClassCastException – if the specified key cannot…

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