Question

I need sub-questions e, f, g, h.

SaffSpring 2019 Professor Question 1: Answer ALL of the following questions based on this provided int daya int montha Date int dnt int y day-d year class Event ring locatson eventbat Event (5tring , Dated ocatlon- event Date-d pubiie String toStringt String detalla-Locatlons"LocatlonDatesevent Date.day return detalia eventDate-year publie statie weld mai arg Event 2ew EventCBayan" hew Date1.3,20191 Systen.out peintil The event n (11.201,as scheduled-ee . 내 1 eentDate.yeari ystem.st-printeinte yatem.ost-printcin(e2) a) What is the output of the above program? b) Add to class Date equals method which receives and object nd it returns true if day of class Date as a parameter, a month, and year of both Date objects (the current object and the object passed as a parameter). Otherwise, the method should return false. c) What will be the output after the method equals has been d) Add private access modifier to the data members of class Date, and add a setter an a getter for each of the data members according to the following rules: i. The year should be a positive number ii. The month should be between 1 and 12 iii. The day should be between and 31, and it should match the month knowing that the months (4,6, 9, 11) have 30 days only and February may have up to 29 days only e) Change the constructor in class Date so that it only creates valid objects according to the rule above. If the parameters passed to the constructor are invalid, then the following default values should be used instead: i. Year: 2019 ii. Month: 1 iii. Day: 1 f) Add private access modifier to the data members of class Event, and add a setter an a getter for each of the data members according to the following rules: i. The location should contain at least two characters. ii. The date should be in year 2019 or after g) Change the constructor in class Event so that it only creates valid objects according to the rule above. If the parameters passed to the constructor are invalid, then the following default values should be used instead: i. Location: Mishref ii. The year of the date object should be set to 2019 while the day and month should stay the same as the object date passed as a parameter to the constructor h) When setting the data members of class Date and class Event to private, you will get several errors in class Event as well as in the main class. Correct these errors making sure that the output of the main class will still be the same.

Answer 1

Please find the required program after adding the codes for all the above questions in the program. Also find the its corresponding output:

class Date {
    private int day;
    private int month;
    private int year;

    public Date(int day, int month, int year) {
        if(day <= 29 && month == 2)
            this.day = day;
        else if(month == 4 || month == 6 || month == 9 || month == 11){
            if(day>30)
                this.day = 1;
            else
                this.day = day;
        }else {
            this.day = day;
        }
        if(month >= 1 && month <= 12)
            this.month = month;
        else
            this.month = 1;
        if(year > 0)
            this.year = year;
        else
            this.year = 2019;
    }

    public int getDay() {
        return day;
    }

    public void setDay(int day) {
        if(this.day <= 29 && this.month == 2)
            this.day = day;
        else if(this.month == 4 || this.month == 6 || this.month == 9 || this.month == 11){
            if(this.day>30)
                System.out.println("Invalid day");
            else
                this.day = day;
        }else {
            this.day = day;
        }
    }

    public int getMonth() {
        return month;
    }

    public void setMonth(int month) {
        if(month >= 1 && month <= 12)
            this.month = month;
        System.out.println("Invalid month");
    }

    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        if(year > 0)
            this.year = year;
        else
            System.out.println("Invalid year");
    }

    public boolean equals(Date that){
        return (this.day == that.day)&&
                (this.month == that.month)&&
                (this.year == that.year);
    }
}

class Event {
    private String location;
    private Date eventDate;

    public Event(String l, Date d) {
        if(l.length() >= 2)
            this.location = l;
        else
            this.location = "Mishref";

        if(d.getYear() >= 2019)
            this.eventDate = d;
        else {
            this.getEventDate().setYear(2019);
            this.getEventDate().setYear(d.getMonth());
            this.getEventDate().setYear(d.getDay());
        }
    }

    public String toString(){
        String details = "Location:" + location + ", Date: "+eventDate.getDay()+ "/" +
                eventDate.getMonth() + "/" + eventDate.getYear();
        return details;
    }

    public String getLocation() {
        return location;
    }

    public void setLocation(String location) {
        if(location.length() >= 2)
            this.location = location;
        else
            System.out.println("Invalid location");
    }

    public Date getEventDate() {
        return eventDate;
    }

    public void setEventDate(Date eventDate) {
        if(eventDate.getYear() >= 2019)
            this.eventDate = eventDate;
        else
            System.out.println("Invalid date");
    }
}

class Main {
    public static void main(String[] args) {
        Event e1 = new Event("Mishref", new Date(1,1,2019));
        Event e2 = new Event("Bayan", new Date(1,1,2019));
        System.out.println("The event is " + e1.getLocation()+ " is scheduled on " +
                e1.getEventDate().getDay()+"/" + e1.getEventDate().getMonth()+
                e1.getEventDate().getYear());

        if(e1.getEventDate().equals(e2.getEventDate())){
            System.out.println(e1.getLocation() + " and " + e2.getLocation()+ "are scheduled on the same date");
        }else {
            System.out.println("The two events are not scheduled on the same date");
        }
        System.out.println(e1);
        System.out.println(e2);
    }
}

--------------------------------------

OUTPUT:

The event is Mishref is scheduled on 1/12019 Mishref and Bayanare scheduled on the same date Location:Mishref, Date: 1/1/2019 Location : Bayan, Date: 1/1/2019