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- package finalExamPrep;
- import java.util.Scanner;
- import java.util.regex.Matcher;
- import java.util.regex.Pattern;
- public class P02FancyBarcodes {
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- int n = Integer.parseInt(scanner.nextLine());
- String regexValidBarcode = "@#+[A-Z][A-Za-z0-9]{4,}[A-Z]@#+";
- Pattern pattern = Pattern.compile(regexValidBarcode);
- Matcher matcher = null;
- for (int i = 0; i < n; i++) {
- String barcode = scanner.nextLine();
- matcher = pattern.matcher(barcode);
- if (matcher.find()) {
- StringBuilder sb = new StringBuilder();
- for (int j = 0; j < barcode.length(); j++) {
- char symbol = barcode.charAt(j);
- if (Character.isDigit(symbol)) {
- sb.append(symbol);
- }
- }
- if (sb.length() == 0) {
- System.out.println("Product group: 00");
- } else {
- System.out.printf("Product group: %s%n", sb.toString());
- }
- } else {
- System.out.println("Invalid barcode");
- }
- }
- }
- }
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