Ele apresenta o seguinte erro can not find symbol, class cities
private String city;
private Map<String,String> cities = new HashMap<String, String>();
cities = new HashMap<String, String>();
cities.put("New York", "New York");
cities.put("London","London");
cities.put("Paris","Paris");
cities.put("Barcelona","Barcelona");
cities.put("Istanbul","Istanbul");
cities.put("Berlin","Berlin");