Design, implement, and test a class that represents an amount of time in minutes

Question

Design, implement, and test a class that represents an amount of time in minutes and seconds. The class should provide a constructor that sets the time to a specified number of minutes and seconds. The default constructor should create an object for a time of zero minutes and zero seconds. The class should provide observers that return the minutes and the seconds separately, and an observer that returns the total time in seconds (minutes x 60 + seconds). Boolean comparison observers should be provided that test whether two times are equal, one time is greater than the other, or one time is less than the other. (You may use RelationType and function ComparedTo if you choose). A function should be provided that adds one time to another, and another function that subtracts one time from another. The class should not allow negative times (subtraction of more time than is currently stored should result in a time of 0:00). This class should be immutable.

#include

"RelationType.h"

class

Time

{

private

:

int minutes;

int seconds;

public

:

//Default Constructors

Time();

//Post: minutes, and seconds are set to 0

//Pre: 0 <= minutes <= 59, 0 <= seconds <= 59

Time(

int initMinutes, int initSeconds);

//Post: Time is set according to the incoming parameters

int getMinutes();

//Post: returns minutes

int getSeconds();

//Post: returns seconds

int totalTime();

//Post: returns total time in seconds

//Pre: time to compare

bool equalTime (Time cTime);

//Post: returns true if both times are equal

//Pre: time to compare

bool lessTime (Time cTime);

//Post: returns true if cTime is less

//Pre: time to add

Time addTime (Time cTime);

//Post: returns time after addition

//Pre: time to subtract

Time subTime (Time cTime);

//Post: returns time after subtraction

//Pre: time to compare

RelationType comparedTo (Time cTime);

//Post: Returns Before if instance comes before

//cTime;

//Returns Same if instance and cTime are the same;

//Returns After if isntance comes after cTime;

};

?

#include

"Time.h"

#include

<iostream>

using

namespace std;

//default constructor to initialise values to 0

Time::Time()

{

minutes = 0;

seconds = 0;

}

//Constructor to initialise values with parameters

Time::Time(

int initMinutes, int initSeconds)

{

minutes = initMinutes;

seconds = initSeconds;

}

//Method to return minutes

int

Time::getMinutes()

{

return minutes;

}

//Method to return seconds

int

Time::getSeconds()

{

return seconds;

}

//Method to convert time into seconds

int

Time::totalTime()

{

return minutes*60+seconds;

}

//Method to check times are equal or not

bool

Time::equalTime(Time cTime)

{

RelationType equal;

equal = comparedTo(cTime);

if (equal == SAME)

return true;

return false;

}

//Method to check time is less than parameter time or not

bool

Time::greaterTime(Time cTime)

{

RelationType greater;

greater = comparedTo(cTime);

if (greater == AFTER)

return true;

return false;

}

//Method to check time is greater than parameter time or not

bool

Time::lessTime(Time cTime)

{

RelationType less;

less = comparedTo(cTime);

if (less == BEFORE)

return true;

return false;

}

//Method to add two times

Time Time::addTime(Time cTime)

{

int min, sec;

min = minutes+cTime.minutes;

sec = seconds+cTime.seconds;

if (sec>59)

{

min = min+1;

sec = sec - 60;

}

Time rTime(min,sec);

return rTime;

}

//Method to subtract two times

Time Time::subTime(Time cTime)

{

int min, sec;

min = minutes-cTime.minutes;

sec = seconds-cTime.seconds;

if(sec<0)

{

min = min-1;

sec = sec + 60;

}

if(min<0)

{

min = 0;

sec = 0;

}

Time rTime(min,sec);

return rTime;

}

//Method to compare two times

RelationType Time::comparedTo(Time cTime)

{

if (minutes < cTime.minutes)

return BEFORE;

else if (minutes > cTime.minutes)

return AFTER;

else if (seconds < cTime.seconds)

return BEFORE;

else if (seconds > cTime.seconds)

return AFTER;

else

return SAME;

}

//Header Files

#include

<iostream>

#include

"Time.h"

using

namespace std;

?

//Main Function

int

main()

{

//Creating two time objects

Time time1 (45, 25);

Time time2 (35, 46);

//Display values in time 1

cout<<

"Time 1 is "<<time1.getMinutes()

<<

":"<<time1.getSeconds()<<endl;

cout<<

"The time in seconds is "

<<time1.totalTime()<<

"."<<endl;

//Display values in time 2

cout<<

"Time 2 is "<<time2.getMinutes()

<<

"."<<time2.getSeconds()<<endl;

cout<<

"The time in seconds is "

<<time2.totalTime()<<

"."<<endl<<endl;

//Compare two times and display the times equal or less or greater

if(time1.equalTime (time2) )

cout<<

"Time 1 and Time 2 are equal."<<endl;

if(time1.greaterTime (time2) )

cout<<

"Time 1 is greater than Time 2."<<endl;

if(time1.lessTime (time2) )

cout<<

"Time 1 is less than Time 2."<<endl;

//Create a time object and store the sum of times

Time sumTimes = time1.addTime(time2);

//Display sum of times

cout<<endl<<

"Time after addition is "

<<sumTimes.getMinutes()<<

" : "

<<sumTimes.getSeconds()<<endl;

//Create a time object and store the difference of times

Time subTimes = time1.subTime(time2);

//Display difference of times

cout<<endl<<

"Time after subtraction is "

<<subTimes.getMinutes()<<

" : "

<<subTimes.getSeconds()<<endl;

system(

"Pause");

return 0;

}

Explanation / Answer

Look at the text of the errors. The first one tells you what is wrong. Time::Time(int, int)' does not match any (prototype) in class 'Time', so fix the prototype in the header file to match the implementation or fix the implementation to match the header file. by fixing it ; i got your code working:)

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