Problem2FinalExamJanuary2021

package JavaFundamentals.FinalExam;

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

public class Problem2 {
    public static void main(String[] args) {
        Scanner read = new Scanner(System.in);

        // regex -> "([*@])(?<tag>[A-Z][a-z]{2,})(\1): \[(?<string1>[A-Za-z])\]\|\[(?<string2>[A-Za-z])\]\|\[(?<string3>[A-Za-z])\]\|$"

        int loop = Integer.parseInt(read.nextLine());

        for (int index = 0; index < loop; index++) {

            String encryptedMsg = read.nextLine();
            // match any coincidence and check if find
            Matcher matcher = Pattern.compile("([*@])(?<mark>[A-Z][a-z]{2,})(\\1): \\[(?<firstGroup>[A-Za-z])\\]\\|\\[(?<secondGroup>[A-Za-z])\\]\\|\\[(?<thirdGroup>[A-Za-z])\\]\\|$")
                    .matcher(encryptedMsg);

            StringBuilder flag = new StringBuilder();
            StringBuilder group1 = new StringBuilder();
            StringBuilder group2 = new StringBuilder();
            StringBuilder group3 = new StringBuilder();

            if (matcher.find()) {

                flag.append(matcher.group("mark"));
                group1.append(matcher.group("firstGroup"));
                group2.append(matcher.group("secondGroup"));
                group3.append(matcher.group("thirdGroup"));


                System.out.println(String.format("%s: %s %s %s"
                        , flag, (int) group1.charAt(0)
                        , (int) group2.charAt(0)
                        , (int) group3.charAt(0)));

            } else {
                System.out.println("Valid message not found!");
            }
        }


    }
}