Code for Creating and Using a HashMap

• //Creating a HashMap
  Map<String, Color> favoriteColors = new HashMap<String, Color>();

• //Adding an association
  favoriteColors.put("Juliet", Color.PINK);

• //Changing an existing association
  favoriteColor.put("Juliet",Color.RED);

• //Getting the value associated with a key
  Color julietsFavoriteColor = favoriteColors.get("Juliet");

• //Removing a key and its associated value
  favoriteColors.remove("Juliet");