Input Filestream

#include <iostream>
#include <string>
#include <fstream>

using namespace std;

int main () {

    ifstream myFile;
    myFile.open("myTest.txt");

    int fileData;
    myFile >> fileData;
    int uAdd;

    cout << "Data From File: " << fileData << endl;
    cout << "Add to value: ";

    if(myFile.fail()){
        cerr << "File could not open!" << endl;
    }

    system("pause");
    return 0;
}