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Get last key from NavigableMap in Java
To display the last key from NavigableMap in Java, use the lastKey() method.
Let us first create NavigableMap −
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);Get the last key now −
n.lastKey()
The following is an example to get the last 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("Last Key is "+n.lastKey());
}
}Output
NavigableMap elements...
{A=498, B=389, C=868, D=988, E=686, F=888, G=999, H=444, I=555, J=666}
Last Key is J
Updated on: 30-Jul-2019
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