Answer to Question #173784 in C++ for Rocky bhai

Question

Declare the class Time consisting of data members hours, minutes and seconds. Invoke a null constructor Time() when an object is created, the parameterized constructor Time(hrs, min, sec) to assign values for the data members and show() member function is used to display the time information in format. Finally free the resources of data objects using destructor member function.

Answer 1

#include <iostream>
#include<iomanip>
#include <stdexcept>

using namespace std;

class Time {
    private:
        int hours;
        int minutes;
        int seconds;
    public :
        Time(int hrs, int min, int sec);
        Time();
        ~Time();
        
        void validTime(int hrs, int min, int sec);
        void show();
};

Time::Time(int hrs, int min, int sec) {
    validTime(hrs, min, sec); 
    this->hours = hrs;
    this->minutes = min;
    this->seconds = sec;
}

Time::Time() {
    this->hours = 0;
    this->minutes = 0;
    this->seconds = 0;
}

Time::~Time() {

}

void Time::validTime(int hrs, int min, int sec) {
    if (hrs < 0 || hrs > 24 || min < 0 || min > 59 || sec < 0 || sec > 59) {
        throw(domain_error("Time value out of range"));
    }
}

void Time::show() {
    cout << setw(2) << setfill('0') << hours << ":"
        << setw(2) << setfill('0') << minutes << ":"
        << setw(2) << setfill('0') << seconds << "\n"; 
}

int main() {
    Time *time = new Time();

    Time *time2 = new Time(21, 5, 30);

    time->show();

    time2->show();

    delete time;

    delete time2;

    return 0;
}