topping3.java

/*
Given a map of food keys and topping values, modify and return the map as follows: if the key "potato" has a value, set that as the value for the key "fries". If the key "salad" has a value, set that as the value for the key "spinach".

topping3({"potato": "ketchup"}) → {"potato": "ketchup", "fries": "ketchup"}
topping3({"potato": "butter"}) → {"potato": "butter", "fries": "butter"}
topping3({"salad": "oil", "potato": "ketchup"}) → {"spinach": "oil", "salad": "oil", "potato": "ketchup", "fries": "ketchup"}
*/
public Map<String, String> topping3(Map<String, String> map) {
  if(map.containsKey("potato")) {
    map.put("fries", map.get("potato"));
  }
  if(map.containsKey("salad")) {
    map.put("spinach", map.get("salad"));
  }
  return map;
}