update,

marissa.sam/task1/src-with-comment/bread_example.cpp

@@ -0,0 +1,69 @@
+/**
+ * @file main.cpp
+ * @author Your Name
+ * @brief A brief description of the program.
+ *
+ * A more detailed description of the program.
+ *
+ * @version 0.1
+ * @date 2022-02-28
+ *
+ * @copyright Copyright (c) 2022 Your Name
+ *
+ */
+
+#include <iostream>
+#include <fstream>
+#include <iomanip>
+#include <string>
+
+using namespace std;
+
+/**
+ * @brief A brief description of the main function.
+ *
+ * A more detailed description of the main function.
+ *
+ * @param argc command line argument count
+ * @param argv command line arguments
+ * @return int exit status
+ */
+int main(int argc, char** argv) {
+    // 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;
+}