What is the lower() method of the NavigableSet interface?

November 10th, 2008 by uCertify Leave a reply »

The lower() method of the NavigableSet interface returns the greatest element that is strictly less than the element in the method parameter. However, if there is no such element in the set, this method returns a null value. The lower() method throws the ClassCastException if the specified element cannot be compared with the elements currently in the set. It throws the NullPointerException if the specified element is null and the given set does not permit null elements.

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