Case Study: Implementation
		void GetData( ifstream&, int&, float& ); void OpenForInput( ifstream& ); void PrintData( int, int, float ); void PrintHeading(); int main() {     int      deptID1;      // Department ID for Store 1     int      deptID2;      // Department ID for Store 2     float    sales1;       // Department sales for Store 1     float    sales2;       // Department sales for Store 2     ifstream store1;       // Accounting file for Store 1     ifstream store2;       // Accounting file for Store 2