ConcurrentHashMap的put方法如何工作？

Question

public static ConcurrentHashMap<String,Integer> playersPvpKills = new ConcurrentHashMap<>();

String(key) is player name Integer is the kills(of a game :P )

well if I use playersPvpKills.add("stackoverflow25", 265);

If already exist key stackoverflow25 but has another amount of kills, will it automatically update it to 265?

Answer 1

From the Javadoc for Map.put

If the map previously contained a mapping for the key, the old value is replaced by the specified value.