Question

Write this program in C++ language. Use the concept of structures. DO NOT use vectors.

Q (4) Create a structure called time. Its three members, all type int, should be called hours,
minutes, and seconds. Write a program that prompts the user to enter a time value in hours,
minutes, and seconds. This should be in 12:59:59 format. This entire input should be assigned
first to a string variable. Then the string should be tokenized thereby assigning the 1st token
to hours, 2nd token to minutes, and 3rd token to seconds member variables of the structure
called time. Finally inside a void Print_in_Seconds(void) member function of time structure,
it should print out the total number of seconds represented by this time value:
long totalsecs = t1.hours*3600 + t1.minutes*60 + t1.seconds (10 Points)

Answer 1

Program Code [C++]

#include <iostream>
#include <sstream>

using namespace std;

// time struct

struct time {
        
        // All Required members for hours, minutes and seconds
        
        int hours;
        int minutes;
        int seconds;
        
        // member function Print_in_Seconds
        
        void Print_in_Seconds() {
                
                // A variable of long type which will store total seconds as mentioned in question
                // this is a pointer which refers to the member variables of the C++ struct or class
                // So we can use this to access every member of time struct
                // Below we are accessing hours, minutes and seconds of time struct using this and adding them
                // Then returning the total seconds
                
                long totalsecs = this->hours * 3600 + this->minutes * 60 + this->seconds;
                cout << "Total number of seconds: " << totalsecs << endl;
        }
};

int main() {
        
        struct time t1;
        
        // Asking user to enter a tome
        
        cout << "Enter a time value in hours, minutes and seconds: ";
        string timeVal;
        cin >> timeVal; // Taking input as a string
        
        // Tokenizing string three times to get value of hours
        
        stringstream t(timeVal);    // We'll tokenize using stringstream of c++
        string temp;                // An extra variable to store tokenized string
        
        getline(t, temp, ':');  // First getting hours ex: 12:59:59 -> temp will have 12
        t1.hours = stoi(temp);  // Now since it is a string, we need to convert to int as hours member of struct time and storing in t1 object
        
        getline(t, temp, ':');  // Now getting minutes ex: 12:59:59 -> temp will now have 59
        t1.minutes = stoi(temp);    // stoi(string to int conversion) again converting to string & storing in t1's minutes
        
        getline(t, temp, ':');  // Now getting seconds => temp will have 59 in case of 12:59:59
        t1.seconds = stoi(temp);    // Converting again to int
        
        // Now printing time on console
        
        cout << "time is " << t1.hours << ":" << t1.minutes << ":" << t1.seconds << endl;
        t1.Print_in_Seconds();  // Calling Print_in_Seconds function to show total seconds on console
        
        return 0;
}

Sample Output:-

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