import java.sql.*;

try {
    Connection conn = DriverManager
         .getConnection(url, userName, password);
    // Connect to the database
    // ...

    Statement stmt = conn.createStatement();
    ResultSet rs = stmt.executeQuery(
        "SELECT " +
        "  Language, Percentage " +
        "FROM countrylanguage " +
        "WHERE CountryCode = 'RUS' " +
        "ORDER BY Percentage DESC");

    // Get first row
    rs.next();
    System.out.println(
        rs.getString(1) + ": " + rs.getString(2));

    // Get all rows
    while (rs.next()) {
        System.out.println(
            rs.getString(1) + ": " + rs.getString(2));
    }   

    conn.close();
}
catch (Exception e) {
    e.printStackTrace();
}