How do I update a value in a SQLite DB?

Hello everyone on StackOverflow! I am trying to update a specific row in an SQLite DB, but it doesn't seem to work. This is what the database looks like.

-----------------------
_id | user | coins
-----------------------
1   | me   | 20
-----------------------

And this is what my code looks like:

public static void updateUserWallet() throws SQLException {
        try {
            int coins;
            Class.forName("org.sqlite.JDBC");
            Connection connection = DriverManager.getConnection("jdbc:sqlite:Database.db");

            String query = "Select * from userSettings WHERE user = " + "'" + lastUser + "'";
            Statement statement = connection.createStatement();
            ResultSet result = statement.executeQuery(query);

            while (result.next()) {
                coins = result.getInt("coins");
                result.updateInt("coins", 10);
                result.updateRow();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

Selecting the table and stuff works, but the second I execute this code, it crashes:

result.updateInt("coins", 10);
result.updateRow();

With this error:

java.sql.SQLException: not implemented by SQLite JDBC driver

    at org.sqlite.jdbc4.JDBC4ResultSet.unused(JDBC4ResultSet.java:321)
    at org.sqlite.jdbc4.JDBC4ResultSet.updateInt(JDBC4ResultSet.java:452)
    at dysanix.advanced.kikbot.main.updateUserWallet(main.java:367)
    at dysanix.advanced.kikbot.main$1.cmdGameRoll(main.java:266)
    at dysanix.advanced.kikbot.main$1.run(main.java:142)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

---

-----------------------
_id | user | coins
-----------------------
1   | me   | 20
-----------------------

All I want to do, is update the "20" to "10" (or another number). How would I go around doing this properly? Thanks!