Java Collection Tutorial - Java TreeMap.descendingMap()


TreeMap.descendingMap() has the following syntax.

public NavigableMap <K , V> descendingMap()


In the following code shows how to use TreeMap.descendingMap() method.

import java.util.NavigableMap;
import java.util.TreeMap;
/*w w w  .j  a v a  2s  . c  o m*/
public class Main {
   public static void main(String[] args) {
      TreeMap<Integer, String>  treemap = new TreeMap<Integer, String> ();
      // populating tree map
      treemap.put(2, "two");
      treemap.put(1, "one");
      treemap.put(3, "three");
      treemap.put(6, "six");
      treemap.put(5, "from");
      // putting values in navigable map
      NavigableMap nmap=treemap.descendingMap();
      System.out.println("Checking value");
      System.out.println("Navigable map values: "+nmap);

The code above generates the following result.