Question

IN C++ pls. Modify the Time class of Figs. 9.8–9.9 of your book to include a tick member function that increments the time stored in a Time object by one second. Write a program that tests the tick member function in a loop that prints the time in standard format during each iteration of the loop to illustrate that the tick member function works correctly. Be sure to test the following cases:

a) Incrementing into the next minute.

b) Incrementing into the next hour.

c) Incrementing into the next day (i.e., 11:59:59 PM to 12:00:00 A

Answer 1

`Hey,

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1.Incrementing into next minute:

#include <iostream>
using namespace std;

class Time
{
   private:
      int hours;             // 0 to 23
      int minutes;           // 0 to 59
   public:
      // required constructors
      Time(){
         hours = 0;
         minutes = 0;
      }
      Time(int h, int m){
         hours = h;
         minutes = m;
      }
      // method to display time
      void displayTime()
      {
         cout << "H: " << hours << " M:" << minutes <<endl;
      }
      // overloaded prefix ++ operator
      Time operator++ ()
      {
         ++minutes;          // increment this object
         if(minutes >= 60)
         {
            ++hours;
            minutes -= 60;
         }
         return Time(hours, minutes);
      }
      // overloaded postfix ++ operator
      Time operator++( int )       
      {
         // save the orignal value
         Time T(hours, minutes);
         // increment this object
         ++minutes;                  
         if(minutes >= 60)
         {
            ++hours;
            minutes -= 60;
         }
         // return old original value
         return T;
      }
};
int main()
{
   Time T1(11, 59), T2(10,40);

   ++T1;                    // increment T1
   T1.displayTime();        // display T1
   ++T1;                    // increment T1 again
   T1.displayTime();        // display T1

   T2++;                    // increment T2
   T2.displayTime();        // display T2
   T2++;                    // increment T2 again
   T2.displayTime();        // display T2
   return 0;
}
2.Incrementing into the next hour:

#include <iostream>
#include <iomanip>
#include <stdexcept>    // Needed for exception handling
#include "Time.h"
using namespace std;

Time::Time(int h, int m, int s) {
   // Call setters to perform input validation
   setHour(h);
   setMinute(m);
   setSecond(s);
}

int Time::getHour() const {
   return hour;
}

void Time::setHour(int h) { // with input validation
   if (h >= 0 && h <= 23) {
      hour = h;
   } else {
      throw invalid_argument("Invalid hour! Hour shall be 0-23.");
            // need <stdexcept>
   }
}

int Time::getMinute() const {
   return minute;
}

void Time::setMinute(int m) {
   if (m >= 0 && m <= 59) {
      minute = m;
   } else {
      throw invalid_argument("Invalid minute! Minute shall be 0-59.");
            // need <stdexcept>
   }
}

int Time::getSecond() const {
   return second;
}

void Time::setSecond(int s) {
   if (s >= 0 && s <= 59) {
      second = s;
   } else {
      throw invalid_argument("Invalid second! Second shall be 0-59.");
            // need <stdexcept>
   }
}

void Time::setTime(int h, int m, int s) {
   // Call setters to validate inputs
   setHour(h);
   setMinute(m);
   setSecond(s);
}

void Time::print() const {
   cout << setfill('0');
   cout << setw(2) << hour << ":" << setw(2) << minute << ":"
        << setw(2) << second << endl;
}
3.incrementing into the Next Day:

#include &lt;iomanip&gt;
using std::setfill;
using std::setw;

#include "Time.h" // include definition of class Time from Time.h

// Time constructor initializes each data member to zero;
// ensures that Time objects start in a consistent state
Time::Time( int hr, int min, int sec )
{
   setTime( hr, min, sec ); // validate and set time
} // end Time constructor

// set new Time value using universal time; ensure that
// the data remains consistent by setting invalid values to zero
void Time::setTime( int h, int m, int s )
{
   setHour( h ); // set private field hour
   setMinute( m ); // set private field minute
   setSecond( s ); // set private field second
} // end function setTime

// set hour value
void Time::setHour( int h )
{
   hour = ( h &gt;= 0 &amp;&amp; h &lt; 24 ) ? h : 0; // validate hour
} // end function setHour

// set minute value
void Time::setMinute( int m )
{
   minute = ( m &gt;= 0 &amp;&amp; m &lt; 60 ) ? m : 0; // validate minute
} // end function setMinute

// set second value
void Time::setSecond( int s )
{
   second = ( s &gt;= 0 &amp;&amp; s &lt; 60 ) ? s : 0; // validate second
} // end function setSecond
[b][color=#FF0000]

void Time::Tick()
{
i need some sort of loop in here is all i assume...
}

[/color][/b]
// return hour value
int Time::getHour()
{
   return hour;
} // end function getHour

// return minute value
int Time::getMinute()
{
   return minute;
} // end function getMinute

// return second value
int Time::getSecond()
{
   return second;
} // end function getSecond

// print Time in universal-time format (HH:MM:SS)
void Time::printUniversal()
{
   cout &lt;&lt; setfill( '0' ) &lt;&lt; setw( 2 ) &lt;&lt; getHour() &lt;&lt; ":"
          &lt;&lt; setw( 2 ) &lt;&lt; getMinute() &lt;&lt; ":" &lt;&lt; setw( 2 ) &lt;&lt; getSecond();
} // end function printUniversal

// print Time in standard-time format (HH:MM:SS AM or PM)
void Time::printStandard()
{
   cout &lt;&lt; ( ( getHour() == 0 || getHour() == 12 ) ? 12 : getHour() % 12 )
          &lt;&lt; ":" &lt;&lt; setfill( '0' ) &lt;&lt; setw( 2 ) &lt;&lt; getMinute()
          &lt;&lt; ":" &lt;&lt; setw( 2 ) &lt;&lt; getSecond() &lt;&lt; ( hour &lt; 12 ? " AM" : " PM" );
} // end function printStandard

Kindly revert for any queries

Thanks.

Answer 2

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