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NavigableMap floorKey() method in Java
The floorKey() method is used to get floor key i.e. to return the greatest key less than or equal to the given key, or null if there is no such key.
The following is an example to get floor key from NavigableMap
Example
import java.util.*;
public class Demo {
public static void main(String[] args) {
NavigableMap<String, Integer> n = new TreeMap<String, Integer>();
n.put("A", 498);
n.put("B", 389);
n.put("C", 868);
n.put("D", 988);
n.put("E", 686);
n.put("F", 888);
n.put("G", 999);
n.put("H", 444);
n.put("I", 555);
n.put("J", 666);
System.out.println("NavigableMap elements...
"+n);
System.out.println("Floor Key = "+n.floorKey("C"));
}
}Output
The output is as follows
NavigableMap elements...
{A=498, B=389, C=868, D=988, E=686, F=888, G=999, H=444, I=555, J=666}
Floor Key = C
Updated on: 29-Jun-2020
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