public class MySqlConnection {

    private String user;
    private String pwd;
    private String url;

    public MySqlConnection() {
       Properties p = new Properties();

       try {
            p.load(this.getClass().getClassLoader()
                  .getResourceAsStream("database_infos.properties"));
        this.user =  p.getProperty("USER");
        this.pwd = p.getProperty("PASSWORD");
        this.url = p.getProperty("URL");
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}


   public static void main(String[] args) {
    MySqlConnection mysqlConn = new MySqlConnection();
    Connection conn = null;

    try {
        Class.forName("com.mysql.jdbc.Driver").newInstance();
        System.out.println("Driver load");
        conn = DriverManager.getConnection(mysqlConn.url, mysqlConn.user, mysqlConn.pwd);

    } catch (ClassNotFoundException | SQLException e) {
        e.printStackTrace();
    } catch (InstantiationException ex) {
        Logger.getLogger(MySqlConnection.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        Logger.getLogger(MySqlConnection.class.getName()).log(Level.SEVERE, null, ex);
    }
}

Driver load
java.sql.SQLException: No suitable driver found for    "jdbc:mysql://localhost:3306/BookManager"
at java.sql.DriverManager.getConnection(DriverManager.java:689)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at mysqlconnection.MySqlConnection.main(MySqlConnection.java:53)