How do I create a leaderboard from the stats in my Firebase Realtime Database?

Question

I want to create a leaderboard in my app. The leaderboard should show the 10 best users who have the most high scores. My Firebase database looks like this:

Starting with the first TextView I want to change the text to:

Answer 1

To get the top 10 users with the highest score, you can use a query like this:

DatabaseReference usersRef = FirebaseDatabase.getInstance().getReference("Users");
Query top10Query = usersRef.orderByChild("highscore").limitToLast(10);