// In Java collections, the TreeMap is a sorted and navigable map that organizes elements
// in a self-balancing binary tree.

import java.util.TreeMap;
 
public class TreeMapExample {
    public static void main(String[] args) {
        TreeMap<String, Integer> students = new TreeMap<String, Integer>();
        //Add Key/Value pairs
        students.put("Edward", 47);
        students.put("Alice", 34);
        students.put("Sheila", 65);
        students.put("Bob", 44);
 
        //Iterate over HashMap
        for(String key: students.keySet()){
            System.out.println(key  +" :: "+ students.get(key));
        }
    }
}