import java.util.*;

public class HelloWorldMap {
  public static void main(String[] args) {
    try {
      // HashMap
      Map hashMap = new HashMap();
      putData(hashMap);
      System.out.println("HashMap : " + hashMap);

      // TreeMap
      Map treeMap = new TreeMap();
      putData(treeMap);
      System.out.println("TreeMap : " + treeMap);

      // LinkedHashMap
      Map linkedHashMap = new LinkedHashMap();
      putData(linkedHashMap);
      System.out.println("LinkedHashMap : " + linkedHashMap);

    } catch (Exception e) {
      e.printStackTrace();
    }
  }
  static void putData(Map map) {
    map.put("5" , "Five");
    map.put("4" , "Four");
    map.put("3" , "Three");
    map.put("2" , "Two");
    map.put("1" , "One");
  }
}