TreeMap ceilingKey() method in java
import java.util.NavigableMap;
import java.util.TreeMap;
public class TreeMapCeilingkeyDemo
{
public static void main(String[] args)
{
NavigableMap<Integer, String> nm = new TreeMap<Integer, String>();
nm.put(10, "apple");
nm.put(20, "banana");
nm.put(30, "cherry");
nm.put(40, "fig");
nm.put(60, "grape");
nm.put(70, "kiwifruit");
// 60 is least value > 50
// it is returned as key.
System.out.println("Ceiling key for 50: " + nm.ceilingKey(50));
}
}