hueta

class Printer {
    public final Queue<String> requests = new LinkedList<>();
    public Printer() {
        Runnable service = () -> {
            for (;;) {
                realPrint(requests.remove());
            }
        };
        new Thread(service).start();
    }

    public static void main(String[] args) {
        Printer printer = new Printer();
        printer.print("1");
        printer.print("2");
        printer.print("3");
        printer.print("4");
        for (int i = 0; i < 100; i++) {
            System.out.println("degro");
        }
    }

    public void print(String job) {
        requests.add(job);
    }
    private void realPrint(String job) {
        System.out.println(job);
    }
}