Question

Fill in the blanks for this program which should read 4 values from a file and output them to a separate file.

#include___________
#include___________
int main() {
int val1,val2,val3,val4;
__________ dataIn;
ofstream __________;
_____________("myinput.dat");
_____________("myoutput.dat");
___________>>_______>>_______>>_______>>_______;
___________<<_______<<_______<<_______<<_______;
return 0; }

Answer 1

To read values from a file and output them to a separate file in C++, you need to include "iostream" and "fstream" libraries, use ifstream to read data, ofstream to create the output file, and perform input and output operations using >> and << operators.

Step-by-step explanation:

The missing code for this program in C++ is as follows:

#include <iostream>

#include <fstream>

int main() {

int val1, val2, val3, val4;

std::ifstream dataIn;

std::ofstream dataOut;

dataIn.open("myinput.dat");

dataOut.open("myoutput.dat");

dataIn >> val1 >> val2 >> val3 >> val4;

dataOut << val1 << val2 << val3 << val4;

dataIn.close();

dataOut.close();

return 0;

}