store data,read specific lines of data from a file and again store them separately into variables to be used further in program

[noorulhuda]

I am working on a management system in which the user inputs some integers for different prices of items and gets the output.I need to store them in a file and then show the user the review of his week. How can i read a specific line containing lots of numbers separated by white spaces? After reading how can i store the numbers in variables again to show them to the user?

[Bdanielz]

If you want help, you need to put more effort into your post. Show us the code you have attempted at least.

[C0D3FR3AK]

Seems like a pretty straight forward assignment.
Show us some code and I'll be able to help.

[noorulhuda]

I am a beginner so any kind of help is appreciated
if you think i should use some other approach then guide me.
What i could come up with was to store all the integers in a string then store the pair of the date and string in the file and by using search algorithm find the date and get the required string. But i can figure out the syntax. IS there any other better and easy approach to do it?

int no_of_hen=0;
		int price_per_hen = 0;
		int	Food_hen = 0;
		int	Shelter_hen = 0;
		int	Health_hen = 0;
		int	offsprings_hen = 0;
		int	no_of_eggs = 0;
		int	Egg_rate = 0;
		int	hens_died = 0;
int total_food = 0;
		int total_shelter = 0;
		int total_health = 0;
		int total_offspring = 0;
		int total_sell_output = 0;
		int output = 0;
		int input = 0;
		int profit_loss = 0;

//will get input from user then and generate outputs to be stored in above variables

//i was thinking of converting them to a string and them store the string as daily data
string s1 = to_string(Price_per_hen);
string s2 = to_string(Food_hen); // do this for all variables
string s3 = s1+s1; // // do this for all variables
ofstream File("File.txt", ios :: app); 
getline (s3, File);
File >> s3;
/* but when user runs program , inputs and closes the program daily
    how am i supposed to get all the data for him to review his week? */

[Bdanielz]

I would approach this a tad differently.
Read this http://www.cplusplus.com/doc/tutorial/structures/ and look at the example program. Do you see how a data structure can help you solve this problem?

[Bdanielz]

Here is some code to get you going. (one way this problem can get solved using structs)

#include <iostream>

using namespace std;
struct Item {
    string name = "";
    double cost = 0;
    int qty = 0;

    double buy() {
        if (qty > 0) {
            qty--;
            cout << "Thank you! You paid " << cost << " dollars for a " << name << "." << endl;
        } else {
            cout << "No more " << name << "We are out of stock" << endl;
            cost = 0;

        }
        return cost;
    }
};
struct Account {
    string owner = "";
    double funds = 10000.00;

    void debit(double amount) {
        funds = funds - amount;
    }
};

int main() {
    Item item[50];
    item[0].name = "Food Hen";
    item[0].cost = 5.5;
    item[0].qty = 6;
    Account myAccount;
    myAccount.owner = "Me";
    cout << myAccount.funds << endl;
    myAccount.debit (item[0].buy ());
    cout << myAccount.funds << endl;
    return 0;
}

let us know if you have any questions.

[noorulhuda]

Thank you for your help Bdanielz!