Phone number verification with Matcher, Pattern?

Question

Java

It is necessary so that until the user enters the correct number, he will not be able to exit the code block. Is there a way to use the "while" statement, or is there another way to implement it?

public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println("Введите свой моб. телефон. Пример: [phone]");
        String phoneNumber = scan.nextLine();
        Pattern pattern = Pattern.compile("^((\\+?+380)([0-9]{9}))$");
        Matcher matcher = pattern.matcher(phoneNumber);
        if (matcher.matches()) {
            System.out.println("Phone: " + phoneNumber + " is correct!"); //введен корректныый номер
        }else {
            System.out.println("Phone: " + phoneNumber + " no correct!"); //введен некорректный номер
        }

Answer 1

If you need a correct number - only a verification code via SMS.
Or they will enter some [phone], and what?