Create a class that simulates an alarm clock. In this class you should: ? Store

Question

Create a class that simulates an alarm clock. In this class you should:

? Store time in hours, minutes, and seconds. Note if time is AM or PM. (Hint: You should have

separate private members for the alarm and the clock. Do not forget to have a character

variable representing AM or PM.)

? Initialize the clock to a specified time.

? Allow the clock to increment to the next second. (Hint: You need to take into account things

like if the clock's time is 11:59:59 AM and you increment by a second, the time will be

12:00:00 PM. You may need to consider some iterated if statements.)

? Set the alarm and have the alarm print out "WAKE UP" when the set time is reached. (Hint:

You may wish to create a private function that provides the wished-for printout when the alarm

time is reached and the alarm clock is on.)

? Display the present time.

? Use the class in a program that uses the functions requiring displaying of time and setting of

the alarm.

Include 2 constructors. One constructor should be the default constructor that will initialize the object

to 12:00:00 AM. The second constructor should take parameters for hours, minutes, seconds, and

AM/PM. Both constructors will provide the private members with the time. In addition, have both

constructors set the alarm clock as off. (You will need a Boolean variable that determines whether the

alarm is on or off). The function or method you use to set the alarm will set the alarm on.

Explanation / Answer

#include<iostream> // for standard input and output
#include <iomanip> // for same width among columns in table

using namespace std;

class AlarmClock
{
private:
int hr;
int min;
int sec;
char AMPM;
bool isOn;
void wishMessage(string message);
  
public:
AlarmClock();
AlarmClock(int h, int m,int s,char AMPM);
setAlarm();
void incSec();
};

void AlarmClock:: AlarmClock()
{
hr=12;
min=0;
sec=0;
AMPM='A';
isOn=false;
}

void AlarmClock:: AlarmClock(int h,int m,int s,char A)
{
hr=h;
min=m;
sec=s;
AMPM=A;
isOn=false;
}

void AlarmClock:: incSec()
{
sec=sec+1;
if(sec%60==1)
{
min++;
if(min%60==1)
{
hr++;
if(hr%12==1)
{
if(AMPM=='A')
{
AMPM='P';
}
else
{
AMPM='A';
}
}
}
}
}

void AlarmClock::wishMessage(string message)
{
if(isOn)
{
cout<<message<<endl;
}
}

void AlarmClock::setAlarm()
{
isOn=true;
}

int main()
{
AlarmClock A(5,0,10,'A');
A.setAlarm();
}

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