CSCM_41

LabThreeQ4.java

import java.util.Scanner;

public class LabThreeQ4 {

    public static void main(String[] args) {
        System.out.println("Welcome to date validator. Please enter a valid day of the month: ");
        Scanner scanner = new Scanner(System.in);
        if (scanner.hasNextInt()) {
            int day = scanner.nextInt();
            if (day > 0 && day <= 31) {
                System.out.println("Please enter a valid month of the year: ");
                if (scanner.hasNextInt()) {
                    int month = scanner.nextInt();
                    if (month > 0 && month <= 12) {
                        if (month == 2 && day > 28) {
                            System.out.println("Invalid date. February only has 28 days");
                        } else if ((month == 4 || month == 6 || month == 8 || month == 11) && day > 30) {
                            System.out.println("Invalid dates. Month chosen only has 30 days");
                        }else {
                            System.out.println("Date is a valid date...");
                        }
                    } else {
                        System.out.println(month + " is not a valid month. Please try again");
                        main(null);
                    }
                } else {
                    System.out.println("Invalid input. Please try again");
                    main(null);
                }
            } else {
                System.out.println("Invalid day entered. " + day + " is not a valid day in the month. Try again");
                main(null);
            }
        } else {
            System.out.println("Invalid Input. Please try again");
            main(null);
        }
    }
}