MessageTranslator

import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MessageTranslator {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String regex = "!(?<command>[A-Z][a-z]{2,})!:\\[(?<message>[A-Za-z]{8,})\\]";
        Pattern pattern = Pattern.compile(regex);
        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 0; i < n; i++) {
            String input = scanner.nextLine();
            Matcher matcher = pattern.matcher(input);
            if (matcher.find()) {
                String command = matcher.group("command");
                String message = matcher.group("message");
                String[] messageAscii = new String[message.length()];
                for (int j = 0; j < messageAscii.length; j++) {
                    messageAscii[j] = "" + (int)message.charAt(j);
                }
                System.out.printf("%s: %s%n", command, String.join(" ", messageAscii));
            } else {
                System.out.println("The message is invalid");
            }
        }
    }
}