Count arraymap matches

Code:java

Map<String, Integer> Zombies = new HashMap<String, Integer>();
 
Zombies.put(zombie.getUniqueId().toString(), game);

I store the id of the zombies in arraymap, along with the id of the game.

It is possible to count the number of elements in a arraymap from the id of the game and not the id of the zombie?

I tried with Zombies.containsValue(game), but this only returns true

 

Zenok
ArrayMap?

Anyways, do you mean how to count all the keys that have a same, specific game value?

 

Swap the parameters in the HashMap and use a for loop to loop through the keys, get their corresponding values and compare them to the game ID in question.

 

TheKomputerKing
That's what I would do too, seems kind of silly how he isn't using the game ids as keys, but whatever. To do the opposite, something like this should work.

Code:java

public int getCount(HashMap <String, Object> map, Object id) {
    int count = 0;
 
    for (Map.Entry <String, Object> entry: map.entrySet()) {
        if (entry.getValue() == id) {
            count++;
        }
    }
 
    return count;
}

This would count all the values that match the given object (id), then return how many there were.

 

I have the array that way, because they also use it in other functions to get the id of heading from the id of the entity.