Question

I am currently working on an Android app and I am trying to get a random value from a database table that looks like this:

| ID | Score|
| 1  | 20   |
| 2  | 5    |
| 5  | 5    |
| 6  | 5    |
| 14 | 15   |

(lets assume these are the only values in the table)

I would like to get a random value from this table that has ID 1 40% of the time, ID 2 10% of the time, ID 5 10% of the time and so on…
If that is even possible, how would you go about it?

Answer 1

Given a List<Integer>, add() each song index score times, Collections.shuffle() the list, and play in order. For better results, skip successive duplicates. More here.