Thread: College Project Creating a class in C++: Help with the constructor and member functio

Hello, thanks for visiting my thread.

The assignment requires that I create a class named Time. It has 3 data members, hour, minute, and second (all are ints). This class should have a constructor with 3 parameters to initialize the 3 data members. There are required bounds for each data member. The hour value should be in the range 0-23, if not set it to 12. The minute value should be in the range 0-59, if not set it to 0. The second value should be in the range 0-59, if not set it to 0. A set and get function is required for each data member. Lastly, a member function named "displayTime" that displays the hour, minute, and second separated by colons. Additionally, if any of the values in hour, minute, and second are between 0-9 then it needs to display as "00", "01", "02", etc.

My current roadblock is that I don't know how to initialize a class with more than one parameter. There isn't an example in the text or online exercises that I can work from. I've tried modifying an example that initializes a single data member, but the compiler doesn't seem to like it.

The second roadblock I foresee is the displyTime member function. I literally have no concept of what this member function is supposed to look like in terms of the syntax.

My work-in-progess code is:

Program code:

Code:

#include <iostream>#include <string>
#include "Time.h"


using namespace std;


int main()
{
    Time theTime(5,10,10);
    
    cout << "Current time is: " << theTime.displayTime();


    cout << "\n Please enter the Hour";
    int theHour;
    cin >> theHour;
    theTime.setHour(theHour);
    
    cout << "\n Please enter the Minute";
    int theSecond;
    cin >> theSecond;
    theTime.setSecond(theSecond);
    
    cout << "\n Please enter the Second";
    int theMinute;
    cin >> theMinute;
    theTime.setMinute(theMinute);    
    
    cout << "Current time is: " << theTime.displayTime();


}

Header code:

Code:

#include <string>

class Time {


public:
    Time () : hour{0} : minute{0}    : second{0} {
    }
    
void setHour (int theHour) {
    if (theHour < 0 or theHour > 23)
    hour = 12;
    else 
    hour = theHour;
}


int getHour () {
    return hour;
}


void setMinute (int theMinute) {
    if (theMinute < 0 or theMinute > 59)
    minute = 0;
    else
    minute = theMinute;
}


int getMinute () {
    return minute;
}


void setSecond (int theSecond) {
    if (theSecond < 0 or theSecond > 59)
    second = 0;
    else
    second = theSecond;
}


int getSecond () {
    return second;
}




private:
    int hour;
    int minute;
    int second;
};

I have the member function displayTime working, but without the requirement that it display each value for hour, minute, and second as 2 digits. ( 1 second should display as 01, 2 should be 02, etc.

It looks like:

Code:

void displayTime () {    
    std::cout << "\n\nNow the time is: " << hour;
    std::cout << ":" << minute;
    std::cout << ":" << second;
}

If someone can point me in the right direction to code in the 2 digit display requirement I would appreciate it.

Code:

// either do it manually
    if (h < 10) cout << '0';
    cout << h << ':';
    if (m < 10) cout << '0';
    cout << m << ':';
    if (s < 10) cout << '0';
    cout << s << '\n';

// or use the iostream formatting facilities
    cout << setfill('0');
    cout << setw(2) << h << ':';
    cout << setw(2) << m << ':';
    cout << setw(2) << s << '\n';