Question

Assuming we have following variables and values:

int a=5, b=10, c=15, x, y, z;

Write the values of a, b and c variables in file by using formatted file I/O and then read data accordingly from file and assign it to x, y and z variables. Just create objects of relevant classes, there is no need to write entire main function.

Answer 1

#include <iostream>
#include <fstream>
using namespace std;


int main()
{
    int a=5, b=10, c=15, x, y, z;
    ofstream out ("text.txt");
    out<<"\na= "<<a;
    out<<"\nb= "<<b;
    out<<"\nc= "<<c;
    out.close();
    
    ifstream in("text.txt");
    string n;
    while (getline (in, n)) {
  // Output the text from the file
        cout<<n;
    in.close();
}
    return 0;
}