Question

Can someone please help me with the following java assignment.

So in this assignment you will begin with the starterProject I provide and then add to it.  I am also asking that before you begin you really look at the starterProject because this is the object-oriented basics. The starterProject is the exact same as the ClassClockExample.zip in Module 5.  I’ve also done this using a clock because it is something that you already know how it works.  Remember that OOD and OOP is an organizational change from the functional programming method.  This is because we could create a clock without using OOP and it would work.  

You will create another class called dateTime.  See below for the details.  Then you will inherit the clock class and the dateTimeApp will test it.

Requirements:

1. Your dateTime.java must be the class and inherit the clock class.
2. Your dateTimeApp.java is the main program.
3. You will create the following public member functions for the dateTime class.
   1. dateTime()

//Default constructor with parameters

//Post: date is set to 1-1-2000

//day = 1; month = 1; year = 2000

//don’t forget to call the default constructor for the

//the clock class.

2. dateTime(intday, intmonth, intyear, inthours, intminutes, intseconds)

//Constructor with parameters

//Post: The date and time is set according to

//the parameters

//The day, month and year get validated and set

//The hours, minutes and seconds get passed on to the clock

//constructor

3. voidsetDate(intday, intmonth, intyear)

//Function to set the date

//Post: time is set according to the

//parameters

voidsetTime(inthours, intminutes, intseconds)

//Function to set the time

//Post: time is set according to the

//parameters

4. voidprintTime()

//Function to print the time

//Time is printed in the form hh:mm:ss

5. voidprintDate()

//Function to print the date

//Date is printed in the form day-month-year

6. voidprintDateTime()

//Function to print the time

//Date and then Time is printed in the form

//day-month-year hh:mm:ss

7. voidincrementSeconds() *should still work

//Function to increment the time by 1 second

//Post: The time is incremented by 1 second

//If the before-increment time is 23:59:59, the time

//is reset to 00:00:00

8. voidincrementMinutes()

***should still work

//Function to increment the time by 1 minute

//Post: The time is incremented by 1 minute

//If the before-increment time is 23:59:53, the time

//is reset to 00:00:53

1. voidincrementHours()

***should still work

//Function to increment the time by 1 hour.

//Post: The time is incremented by 1 hour.

//If the before-increment time is 23:45:53, time

//is reset to 00:45:53

10. boolequalTime(dateTime otherClock)

***should still work

//Function to compare the two times

//Function returns true if this time is equal to

//otherClock; otherwise it returns false

11. voidincrementDays()

//Function to increment the date by 1 day

//Post: The time is incremented by 1 day

//If the before-increment date is 31-12-2009, the date

//is reset to 1-1-9010

50. voidincrementMonths()

//Function to increment the date by 1 month

//Post: The month is incremented by 1 month

//If the before-increment date is 31-12-2009, the date

//is reset to 31-1-9010

1000. voidincrementYears()

//Function to increment the date by 1 year.

//Post: The year is incremented by 1 year.

14. boolequalDate(dateTime otherDate)

//Function to compare the two dates

//Function returns true if this date is equal to

//otherwise it returns false

1. The dateTimeApp will then run the clock and the date.  You need to test all of the functionality you have built in.
2. Be sure you also update or change the header file to yours.

INFO 1521 - StarterProject

The following is what I might have given you if I wanted you to create the starterProject. “You are going to create a clock in this project and use a class while doing it.  So the class will be the clock called Clock.java and then you will have another JAVA file that runs it called ClockApp.java.  Below are the requirements for the clock and the clockapp that runs it. “

Requirements:

1. Your Clock.java must be the class.
2. Your ClockApp.java is the main program.
3. Your clock will be a 24 hour clock
4. You will create the following public member functions for the clock class.
   1. clock()

//Default constructor with parameters

//Post: time is set to 00:00:00

//hr = 0; min = 0; sec = 0

2. clock(inthours, intminutes, intseconds)

//Constructor with parameters

//Post: The time is set according to

//the parameters

//hr = hours; min = minutes; sec = seconds

3. voidsetTime(inthours, intminutes, intseconds)

//Function to set the time

//Post: time is set according to the

//parameters: hr = hours; min = minutes; sec = seconds

4. voidprintTime()

//Function to print the time

//Time is printed in the form hh:mm:ss

5. voidincrementSeconds()

//Function to increment the time by 1 second

//Post: The time is incremented by 1 second

//If the before-increment time is 23:59:59, the time

//is reset to 00:00:00

6. voidincrementMinutes()

//Function to increment the time by 1 minute

//Post: The time is incremented by 1 minute

//If the before-increment time is 23:59:53, the time

//is reset to 00:00:53

7. voidincrementHours()

//Function to increment the time by 1 hour.

//Post: The time is incremented by 1 hour.

//If the before-increment time is 23:45:53, time

//is reset to 00:45:53

8. boolequalTime(constclockType otherClock)

//Function to compare the two times

//Function returns true if this time is equal to

//otherClock; otherwise it returns false

5. The ClockApp will then run the clock.  You need to test all of the functionality you have built in.
6. Don’t forget your header file
7. While testing the functionality create a loop and increment the seconds for a while.

Answer 1

clock.java

//clock class
public class clock
{
   int hours;       // variable to store the hours
   int minutes;   // variable to store the minutes
   int seconds;   // variable to store the seconds
  
//Default constructor
public clock()
{  
hours = 0;
minutes = 0;
seconds = 0;
}
  
//parameterized constructor
public clock(int hours, int minutes, int seconds)
{
   this.hours = hours;
this.minutes = minutes;
this.seconds = seconds;
}
  
//method to set time
public void setClock(int hours, int minutes, int seconds)
{
   this.hours = hours;
this.minutes = minutes;
this.seconds = seconds;
}
}
  

dateTime.java

//dateTime class, subclass of clock
public class dateTime extends clock
{
   private int month;    // variable to store the month
   private int day;    // variable to store the day
   private int year;     // variable to store the year
  
//Default constructor
public dateTime()
{
   super();
month = 1;
day = 1;
year = 2000;
}

//parameterized constructor
public dateTime(int day, int month, int year, int hours, int minutes, int seconds)
{
   super(hours, minutes, seconds);
  
if(isValidDate(month, day, year))
{
this.month = month;
this.day = day;
this.year = year;
}
else
{
System.out.println("Invalid Date!");
month = 1;
   day = 1;
   year = 2000;
}
}

//method to set date
public void setDate(int day, int month, int year)
{
if(isValidDate(month, day, year))
{
this.month = month;
this.day = day;
this.year = year;
}
else
{
System.out.println("Invalid Date!");
month = 1;
   day = 1;
   year = 2000;
}
}
  
//method to set time
public void setTime(int hours, int minutes, int seconds)
{
this.hours = hours;
this.minutes = minutes;
this.seconds = seconds;
}

//method to check leap year
private boolean isLeapYear(int y)
{
if(y%400==0 || y%4==0 && y%100!=0 )
return true;
return false;
}

//method to check valid date
private boolean isValidDate(int mm, int dd, int yy)
{

if (yy > 9999 || yy < 1900)
return false;
if (mm < 1 || mm > 12)
return false;
if (dd < 1 || dd > 31)
return false;

if (mm == 2)
{
if (isLeapYear(yy))
return (dd <= 29);
else
return (dd <= 28);
}

if (mm == 4 || mm == 6 ||
mm == 9 || mm == 11)
return (dd <= 30);

return true;
   }
  
   //method to display date
   public void printTime()
   {
       System.out.print(hours + ":" + minutes + ":" + seconds);
   }

//method to display date
public void printDate()
{
   System.out.print(day + "-" + month + "-" + year);
}
  
//method to display date and time
public void printDateTime()
{
   System.out.print(day + "-" + month + "-" + year);
   System.out.print(" " + hours + ":" + minutes + ":" + seconds);
}
  
//method to increment the time by 1 second
public void incrementSeconds()
{
   if(hours==23 && minutes==59 && seconds==59)
   {
       hours = 0;
        minutes = 0;
        seconds = 0;
        incrementDays();
   }
   else if(minutes==59 && seconds==59)
   {
       hours++;
       minutes = 0;
        seconds = 0;
      
   }
   else if(seconds==59)
   {
       minutes++;
        seconds = 0;
   }
   else
       seconds++;
}
  
//method to increment the time by 1 minute
public void incrementMinutes()
{
   if(hours==23 && minutes==59)
   {
       hours = 0;
        minutes = 0;
        incrementDays();
   }
   else if(minutes==59)
   {
       hours++;
       minutes = 0;
   }
   else
       minutes++;
}
  
//method to increment the time by 1 hour
public void incrementHours()
{
   if(hours==23)
   {
       hours = 0;
        incrementDays();
   }
   else
       hours++;
}
  
//method to compare the two times
public boolean equalTime(dateTime otherClock)
{
   if(hours==otherClock.hours && minutes==otherClock.minutes && seconds==otherClock.seconds)
       return true;
   return false;
}
  
  
//method to increase the date by one day
public void incrementDays()
{
if (day == 31 && (month == 1 || month == 3 || month == 5 || month == 7
|| month == 8 || month == 10 || month == 12))
{
if (month == 12)
{
month = 1;
day = 1;
year++;
}
else
{
day = 1;
month++;
}
}
else if (day == 30 && (month == 4|| month == 6 || month == 9 || month == 11))
{
day = 1;
month++;
}
else if (isLeapYear(year)== true && day == 29 && month == 2)
{
day = 1;
month++;
}
else if(isLeapYear(year)== false && day == 28 && month == 2)
{
day = 1;
month++;
}
else

day++;
}

//method to return number of days in a month
private int noOfDaysInMonth(int month)
{
switch(month)
{
case 1: case 3: case 5: case 7: case 8: case 10: case 12: return 31;
case 4: case 6: case 9: case 11: return 30;
case 2: if(isLeapYear(year)) return 29; else return 28;
}
return 0;
}

//method to return number of days passed in the year
private int noOfDaysPassedInYear()
{
int days = day;

for(int i=1; i<month; i++)
{
days += noOfDaysInMonth(i);
}
return days;
}

//method to return number of days remaining in the year
private int noOfDaysRemainingInYear()
{
int days;

if(isLeapYear(year))
days = 366 - noOfDaysPassedInYear();
else
days = 365 - noOfDaysPassedInYear();

return days;
}
  
//method to increment the date by 1 month
public void incrementMonths()
{
   if(month==12)
   {
       month = 1;
       year++;
   }
   else
       month++;
}
  
//method to increment the date by 1 year
public void incrementYears()
{
   year++;
}
  
//method to compare the two dates
boolean equalDate(dateTime otherDate)
{
   if(year==otherDate.year && month==otherDate.month && day==otherDate.day)
       return true;
   return false;
}
}

dateTimeApp.java

//dateTimeApp class
public class dateTimeApp
{
   //main method
   public static void main (String[] args)
   {
       //create an object of dateTime class
       dateTime dt = new dateTime(31, 07, 2019, 20, 45, 22);
      
       System.out.print("Now: ");
       dt.printDateTime();       //display date and time
      
       dt.incrementDays();
      
       System.out.print("\nTomorrow: ");
       dt.printDate();           //display date
      
}
}

Output:

Now: 31-7-2019 20:45:22
Tomorrow: 1-8-2019