Case Study: Implementation
//********************************************************
// Graph program
// This program generates bar graphs of monthly sales
// by department for two Chippendale furniture stores,
// permitting department-by-department comparison of sales
//********************************************************
#include <iostream>
#include <iomanip>    // For setw()
#include <fstream>    // For file I/O
#include <string>     // For string type
using namespace std;