Files
marissa.sam/task1/_ref/Chapter03/helloworld.cpp
louiscklaw bfa5b5ff46 update,
2025-02-01 02:04:02 +08:00

46 lines
1.1 KiB
C++

#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
using namespace std;
int main(){
//Declare variables
ifstream inFile;
ofstream outFile;
string burger_name, fries_name, icecream_name;
int burger_price, fries_price, icecream_price;
//Open the input file and output file
inFile.open("price.txt");
if (!inFile) {
cout << "Cannot open the input file."
<< "The program terminates." << endl;
return 1;
}
outFile.open("price_output.out");
cout << "Processing data" << endl;
//Read file word by word
inFile >> burger_name >> burger_price;
inFile >> fries_name >> fries_price;
inFile >> icecream_name >> icecream_price;
//Output file
outFile << "The price of " << burger_name
<< " is $" << burger_price <<"." << endl;
outFile << "The price of " << fries_name
<< " is $" << fries_price << "." << endl;
outFile << "The price of " << icecream_name
<< " is $" << icecream_price << "." << endl;
inFile.close(); // .close(): close a file
outFile.close();
cout << "Processing completed" << endl;
return 0;
}