11219 How old are you?

import java.util.Scanner;

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

        int testCases = scanner.nextInt();
        scanner.nextLine();
        int counter = 0;
        while (testCases-- > 0) {
            scanner.nextLine();
            String current = scanner.nextLine();
            String birth = scanner.nextLine();

            counter++;
            System.out.print("Case #"+counter+": ");

            String cur[] = current.split("/");
            String brt[] = birth.split("/");

            int currentYear = Integer.parseInt(cur[2]);
            int currentMonth = Integer.parseInt(cur[1]);
            int currentDay = Integer.parseInt(cur[0]);

            int birthYear = Integer.parseInt(brt[2]);
            int birthMonth = Integer.parseInt(brt[1]);
            int birthDate = Integer.parseInt(brt[0]);

            int age = 0, flag = 0;

            if (currentYear >= birthYear) {
                if (currentYear == birthYear) {
                    if (currentMonth == birthMonth) {
                        if (currentDay >= birthDate) {
                            System.out.println("0");
                            flag = 1;
                        } else if (currentDay < birthDate) {
                            System.out.println("Invalid birth date");
                            flag = 1;
                        }
                    } else if (currentMonth < birthMonth) {
                        System.out.println("Invalid birth date");
                        flag = 1;
                    } else {
                        System.out.println("0");
                        flag = 1;
                    }
                } else {
                    age = currentYear - birthYear;
                    if (currentMonth < birthMonth) {
                        age -= 1;
                    } else if (currentMonth == birthMonth) {
                        if (currentDay < birthDate) {
                            age -= 1;
                        }
                    }
                }
            } else {
                System.out.println("Invalid birth date");
                flag = 1;
            }

            if (flag == 0) {
                if (age <= 130) {
                    System.out.println(age);
                } else {
                    System.out.println("Check birth date");
                }
            }

        }

    }
}