Answer to Question #188939 in C++ for Dunga

Question #188939
  1. Create a class named Time that contains integer fields for hours and minutes. Store the hour in military time that is, 0 to 23. Add a function that displays the fields, using a colon to separate hours and minutes. (Make sure the minutes displays as two digits. For example, 3 o’clock should display at 3:00, not 3:0). Add another function that takes an argument that represents minutes to add to the time. The function updates the time based on the number of minutes added. For example, 12:30 plus 15 is 12:45, 14:50 plus 20 is 15:10, and 23:59 plus 2 is 0:01. The Time constructor ensures that the hour field is not greater than 23 and that the minutes field is not greater than 59; default to these maximum values if the arguments to the constructor are out of range. Create a main() function that instantiates an array of at least four Time objects and demonstrates that they display correctly both before and after varying amounts of time have been added to them.
1
Expert's answer
2021-05-06T11:45:56-0400
#include <bits/stdc++.h>
using namespace std;
class Time{
    int hours, minutes;
    public:
    Time(){}
    Time(int hrs, int min){
        hours = hrs;
        minutes = min;
        if(hours > 23) hours = 23;
        if(minutes > 59) minutes = 59;
    }
    void show(){
        cout<<this->hours<<":";
        if(this->minutes < 10) cout<<0;
        cout<<this->minutes<<endl;
    }
    Time add(int m){
        this->minutes += m;
        while(minutes >= 60){
            this->minutes -= 60;
            this->hours++;
        }
        while(this->hours > 23) this->hours -= 24;
        return *this;
    }
};
int main(){
    Time time[4] = {Time(23, 59), Time(24, 67), Time(0, 0), Time(3, 0)};
    for(int i = 0; i < 4; i++) time[i].show();
    cout<<endl;
    time[0].add(2).show();
    time[1].add(1).show();
    time[2].add(60).show();
    time[3].add(2881).show();
    return 0;
}

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