Java TreeMap.size()

public int size()

import java.util.TreeMap;
/*from  w w w .  ja va2s. 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 java2s.com");    
      
      // getting size of the map
      System.out.println("Size of the map: "+treemap.size());      
   }    
}