How to get 5 highest values from a hashmap?

Question

I have a Hashmap that links a zipcodes stored as keys and population stored as values in a hashmap.

The hashmap contains around 33k entries.

I\'m trying to get t

Answer 1

This is something i made and hopefully provides you something that you want to use.

public class TopsCollection { 

private static Map collectors = new HashMap<>();

public TopsCollection() {
}

public void add(String playerName, int score) {
    collectors.put(playerName, score);
}

public void clearCollectors() {
    synchronized (collectors) {
        collectors.clear();
    }
}

public List> getTops() {
    return collectors.entrySet().stream().sorted(comparing(Map.Entry::getValue, reverseOrder())).limit(5).collect(toList());
}

public int getTopByName(String name) {
    for (int i = 0; i < getTops().size(); i++) {
        if (getTops().get(i).getKey().contains(name)) {
            return i;
        }
    }
    return 0;
}

getTopByName allows you to get the top place of the specified name.