Lecture 12 Examples
 |
| Program | Demonstrates |
|---|---|
| append.cpp | Demonstrates output by appending data to a diskfile. |
| datain.cpp | Similar to textin.cpp below but uses variables of different data types for input. |
| dataout.cpp | Similar to textout.cpp below but uses variables of different data types for output. |
| inputsales.cpp | Shows the input of an object. |
| inputSalesArray.cpp | Shows file input of an array of objects. |
| outputsales.cpp | Shows the output of an object |
| outputSalesArray.cpp | Shows file output of an array of objects |
| salsimnycount.cpp | Demonstrates how to count the number of records in a binary file |
| salesin.cpp | Shows file input of a class object which is an array. |
| salesout.cpp | Shows file output of a class object whichis an array. |
| salsimny.cpp | Shows file input of multiple class objects which are arrays. |
| salsimnyeof.cpp | Shows file input of multiple class objects which are arrays like the example above but uses the function: eof(). |
| salsomny.cpp | Shows file output of multiple class objects which are arrays. |
| salsimnysee.cpp | Demonstrates how to count the number of records in a binary file |
| textin.cpp | Shows how to input text files a character at a time using get() |
| textout.cpp | Shows how text files output |
| truncate.cpp | Demonstrates output by truncating the data in a disk file. |
| These files provide a maintenance example of the following files by changing from text file I/O to binary file I.O for objects of a class. |
| These files are an example of text file I./O with objects. |
Open table as spreadsheet |
// program_id append.cpp // author don voils // date written 3/25/2006 // // description This program demonstrates output // by appending data to a diskfile. // #include<fstream> #include<iostream> using namespace std; void main() { float theHourlyRate = 125.50; int hoursWorked = 45; ofstream outfile("testin2.txt",ios::app); if(!outfile) { cout << "File did not open." << endl << endl; exit(1); } outfile << "George" << endl; outfile << "Thomas" << endl; outfile << "Accountant" << endl; outfile << theHourlyRate << endl; outfile << hoursWorked << endl; } // program_id bookInventory.gif // written_by don voils // date_written 3/2/2007 // description The graphic below is the UML chart // for the class: bookInventory. // 
// program_id bookInventory.cpp // written_by don voils // date_written 5/25/2006 // description This file contains the method definitions // for the class bookInventory. // #include "bookInventory.h" // The following methods are initilizing and // access methods for each of the attributes // of the class bookInventory. // void bookInventory::setbookName(string theName) { bookName = theName; } string bookInventory::getbookName() { return bookName; } void bookInventory::setISBN(string theISBN) { ISBN = theISBN; } string bookInventory::getISBN() { return ISBN; } void bookInventory::setyearPublished(string theYear) { yearPublished = theYear; } string bookInventory::getyearPublished() { return yearPublished; } void bookInventory::setnumberOnHand(string theNumber) { numberOnHand = theNumber; } string bookInventory::getnumberOnHand() { return numberOnHand; } void bookInventory::setcostBook(string theCost) { costBook = theCost; } string bookInventory::getcostBook() { return costBook; } void bookInventory::setpriceBook(string thePrice) { priceBook = thePrice; } string bookInventory::getpriceBook() { return priceBook; } void bookInventory::setbookAuthors(int theNumber,string theName) { bookAuthors[theNumber] = theName; } string bookInventory::getbookAuthors(int theNumber) { return bookAuthors[theNumber]; } // program_id bookInventory.h // written-by Don Voils // date_written 5/25/2006 // // Description: This header contains the definition // of the class bookInventory. // #include<iostream> #include<string> using namespace std; #ifndef INVENTORY #define INVENTORY // Although some of the attributes would normally // be numeric rather than strings, string data // type was chosen because of the way C++ handles // file I/O. // class bookInventory { private: string bookName; string ISBN; string yearPublished; string numberOnHand; string costBook; string priceBook; string bookAuthors[4]; public: void setbookName(string theName); string getbookName(); void setISBN(string theISBN); string getISBN(); void setyearPublished(string theYear); string getyearPublished(); void setnumberOnHand(string theNumber); string getnumberOnHand(); void setcostBook(string theCost); string getcostBook(); void setpriceBook(string thePrice); string getpriceBook(); void setbookAuthors(int theNumber,string theName); string getbookAuthors(int theNumber); }; #endif // program_id datain.cpp // author don voils // date written 3/25/2006 // // description This program demonstrates output // of strings or numbers to a diskfile // in ASCII text format. // #include<fstream> #include<iostream> #include<string> #include<iomanip> using namespace std; void main() { float theHourlyRate; int hoursWorked; string firstName; string lastName; string jobType; ifstream inFile("testing2.txt"); if(!inFile) { cout << "File did not open." << endl << endl; exit(1); } inFile >> firstName; inFile >> lastName; inFile >> jobType; inFile >> theHourlyRate; inFile >> hoursWorked; cout << fixed << setprecision(2); cout << endl << endl << setw(15) << left << "Employee: " << firstName << " " << lastName << endl << setw(15) << "Job Type: " << jobType << endl << setw(15) << "Hourly Rate: $" << theHourlyRate << endl << setw(15) << "Hours Worked: " << hoursWorked << endl << setw(15) << "Weekly Salary: $" << theHourlyRate * hoursWorked << endl; cout << endl << endl << "Continue? "; char resp; cin >> resp; cout << endl << endl; } // program_id dataout.cpp // author don voils // date written 3/25/2006 // // description This program demonstrates output // of strings or numbers to a diskfile // in ASCII text format. // #include<fstream> #include<iostream> using namespace std; void main() { float theHourlyRate = 125.50; int hoursWorked = 45; ofstream outFile("testing2.txt"); if(!outFile) { cout << "File did not open." << endl << endl; exit(1); } outFile << "George" << endl; outFile << "Thomas" << endl; outFile << "Accountant" << endl; outFile << theHourlyRate << endl; outFile << hoursWorked << endl; cout << endl << endl << "Continue? "; char resp; cin >> resp; cout << endl << endl; } // program_id doBinaryInventory.cpp // written_by don voils // date_written 5/25/2006 // // Description This is the menu for a program that processes // the inventory for Barnes and Nelson BookStores. // This is a modification of the file: doInventory.cpp // by changing the header from theFunctions.h to // the header theBinaryFunctions.h. // #include<iostream> using namespace std; // The following header contains the definition of the // class bookInventory. // #include "bookInventory.h" // The following header contains the functions that are // the modules for the program. // #include "theNewFunctions.h" void main() { // Used to receive the input for the // menu selection. // char index; // Used to control the menu loop. // bool More = true; // Used to define and control the // array of inventory items. // const int numberItems = 500; // The follwing array contains the inventory // items that the program processes. // bookInventory inventory[numberItems]; // The following module loads the inventory from // disk and places it into the array of inventory // items. If there is no data in the array, then // the array is filled with blank data. // loadBinaryInventory(inventory, numberItems); do { clearScreen(); cout << " Inventory Modification" << endl << endl << endl << " 1. Enter New Records" << endl << endl << " 2. Display by ISBN" << endl << endl << " 3. Edit Records" << endl << endl << " 4. Delete Records" << endl << endl << " 5. Exit" << endl << endl << " Which? "; cin.get(index).get(); cout << endl << endl; // This is an example of late binding. The compiler does not specify // the location of the jump until the execution of the program. // switch(index) { case '1': // This option permits the entry of inventory // records into the inventory array. // enterNewRecords(inventory,numberItems); break; case '2': // This option permits the display of an // inventory record given the ISBN of the book. // ISBNDisplay(inventory,numberItems); break; case '3': // This option permits the editing of each // item of a specific book record given the // ISBN of the book. // editItems(inventory,numberItems); break; case '4': // This option permits the deleting of an // item of a specific book record given the // ISBN of the book. // deleteItem(inventory,numberItems); break; case '5': clearScreen(); cout << "Data is being stored to file." << endl << endl; // This option terminates the program but // saves all of the data to a file prior // to ending. // saveBinaryInventory(inventory,numberItems); // Used to end the menu loop. // More = false; break; } }while(More); clearScreen(); cout << "Data has been stored to file." << endl << endl; } // program_id doInventory.cpp // written_by don voils // date_written 5/25/2006 // // Description This is the menu for a program that processes // the inventory for Barnes and Nelson BookStores. // #include<iostream> using namespace std; // The following header contains the definition of the // class bookInventory. // #include "bookInventory.h" // The following header contains the functions that are // the modules for the program. // #include "theFunctions.h" void main() { // Used to receive the input for the // menu selection. // char index; // Used to control the menu loop. // bool More = true; // Used to define and control the // array of inventory items. // const int numberItems = 500; // The follwing array contains the inventory // items that the program processes. // bookInventory inventory[numberItems]; // The following module loads the inventory from // disk and places it into the array of inventory // items. If there is no data in the array, then // the array is filled with blank data. // loadInventory(inventory, numberItems); do { clearScreen(); cout << " Inventory Modification" << endl << endl << endl << " 1. Enter New Records" << endl << endl << " 2. Display by ISBN" << endl << endl << " 3. Edit Records" << endl << endl << " 4. Delete Records" << endl << endl << " 5. Exit" << endl << endl << " Which? "; cin.get(index).get(); cout << endl << endl; // This is an example of late binding. The compiler does not specify // the location of the jump until the execution of the program. // switch(index) { case '1': // This option permits the entry of inventory // records into the inventory array. // enterNewRecords(inventory,numberItems); break; case '2': // This option permits the display of an // inventory record given the ISBN of the book. // ISBNDisplay(inventory,numberItems); break; case '3': // This option permits the editing of each // item of a specific book record given the // ISBN of the book. // editItems(inventory,numberItems); break; case '4': // This option permits the deleting of an // item of a specific book record given the // ISBN of the book. // deleteItem(inventory,numberItems); break; case '5': clearScreen(); cout << "Data is being stored to file." << endl << endl; // This option terminates the program but // saves all of the data to a file prior // to ending. // saveInventory(inventory,numberItems); // Used to end the menu loop. // More = false; break; } }while(More); clearScreen(); cout << "Data has been stored to file." << endl << endl; } // program_id inputSales.cpp // author don voils // date written 11/25/2006 // // program description This program demonstrates file // input of a class object. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void setDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int getMonth(){return month;} int getDay(){return day;} int getYear(){return year;} }; class sales : public Date { private: float theSales; public: void setSales() { setDate(); cout << endl << endl <<"What is the sales? "; cin >> theSales ; } float getSales() { return theSales; } }; void main() { sales today; ifstream infile("sales.txt",ios::in | ios::binary); infile.read((char *) &today, sizeof(today)); cout << fixed << setprecision(2); cout << "The sales for " << today.getMonth() << "/" << today.getDay() << "/" << today.getYear() << endl << endl; cout << "$" << today.getSales() << endl << endl; cout << endl << endl << "Continue? (Y/N) "; char resp; cin.get(resp); cout << endl << endl; } // program_id inputSalesArray.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates file // input of an array of class objects. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void setDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int getMonth(){return month;} int getDay(){return day;} int getYear(){return year;} }; class sales : public Date { private: float theSales; public: void setSales() { setDate(); cout << endl << endl <<"What is the sales? "; cin >> theSales ; } float getSales() { return theSales; } }; void main() { sales today[3]; ifstream infile("arraySales.txt",ios::in | ios::binary); infile.read((char *) &today, sizeof(today)); cout << fixed << setprecision(2); for(int index=0;index<3;index++) { cout << endl << "Day " << index+1 << endl << endl; cout << today[index].getMonth() << "/" << today[index].getDay() <<"/" << today[index].getYear() << endl; cout << "Sales: $ " << today[index].getSales() << endl; } cout << endl << endl << "Continue? (Y/N) "; char resp; cin.get(resp).get(); cout << endl << endl; } // program_id outputSales.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates file // output of a class object. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void setDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int getMonth(){return month;} int getDay(){return day;} int getYear(){return year;} }; class sales : public Date { private: float theSales; public: void setSales() { setDate(); cout << endl << endl <<"What is the sales? "; cin >> theSales ; } float getSales() { return theSales; } }; void main() { sales today; ofstream infile("sales.txt",ios::out | ios::binary); today.setSales(); infile.write((char *) &today, sizeof(today)); cout << endl << endl << "Continue? (Y/N) "; char resp; cin.get(resp).get(resp); cout << endl << endl; } // program_id outputSalesArray.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates file // ouput of an array of class objects. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void setDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int getMonth(){return month;} int getDay(){return day;} int getYear(){return year;} }; class sales : public Date { private: float theSales; public: void setSales() { setDate(); cout << endl << endl <<"What is the sales? "; cin >> theSales ; } float getSales() { return theSales; } }; void main() { sales today[3]; ofstream outfile("arraySales.txt",ios::out | ios::binary); cout << fixed << setprecision(2); for(int index=0;index<3;index++) { cout << endl << "Day " << index+1 << endl << endl; today[index].setSales(); } outfile.write((char *) &today, sizeof(today)); cout << endl << endl << "Continue? (Y/N) "; char resp; cin.get(resp).get(); cout << endl << endl; } // program_id pc_doInventory.txt // written_by don voils // date_written 3/2/2006 // description This is the pseudo code for the program bookInventory.cpp // doInventory Set More = true; Set numberItems = 500; Process loadInventory(inventory[], numberItems); Do Process clearScreen(); Display " Inventory Modification" " 1. Enter New Records" " 2. Display by ISBN" " 3. Edit Records" " 4. Delete Records" " 5. Exit" << endl " Which? " Receive Choice CASE of Choice '1': Process enterNewRecords(inventory[],numberItems) '2': Process ISBNDisplay(inventory[],numberItems) '3': Process editItems(inventory[],numberItems) '4': Process deleteItem(inventory[],numberItems) '5': Process clearScreen(); Display "Data is being stored to file." Process saveInventory(inventory[],numberItems) Set More = false ENDCASE }while(More) Process clearScreen(); Display "Data has been stored to file." END clearScreen() FOR(loop_counter=0;loop_counter<=100;++loop_counter) Display carriageReturn ENDFOR RETURN loadInventory(inventory[],numberItems) Open inFile(a:\inventory.dat) IF(!inFile)THEN Set startString = "Start" Set aString = "****" FOR(index = 0; index < numberItems;++index) inventory[index].setbookName(startString) inventory[index].setISBN(aString) inventory[index].setyearPublished(aString) inventory[index].setnumberOnHand(aString) inventory[index].setcostBook(aString) inventory[index].setpriceBook(aString) inventory[index].setbookAuthors(0,aString) inventory[index].setbookAuthors(1,aString) inventory[index].setbookAuthors(2,aString) inventory[index].setbookAuthors(3,"end") ENDFOR ELSE FOR(index = 0;index<numberItems;++index) Receive aString inventory[index].setbookName(aString) Receive aString inventory[index].setISBN(aString) Receive aString inventory[index].setyearPublished(aString) Receive aString inventory[index].setnumberOnHand(aString) Receive aString inventory[index].setcostBook(aString) Receive aString inventory[index].setpriceBook(aString) Receive aString inventory[index].setbookAuthors(0,aString) Receive aString inventory[index].setbookAuthors(1,aString) Receive aString inventory[index].setbookAuthors(2,aString) Receive aString inventory[index].setbookAuthors(3,aString) ENDFOR ENDIF Close inFile RETURN enterNewRecords(inventory[],numberItems) { Set recordNumber = -1 FOR(index = 0; index < numberItems;++index) IF(inventory[index].getISBN() == "****")THEN recordNumber = index break ENDIF ENDFOR IF(recordNumber == -1)THEN Process clearScreen() Display "Error file is full. Continue? " Receive resp ELSE Process clearScreen() Request "What is the book name? " Receive aString inventory[index].setbookName(aString) Request "What is the ISBN? " Receive aString inventory[index].setISBN(aString) Request "What is the year the book was published? " Receive aString inventory[index].setyearPublished(aString) Request "How many of this book do we have on hand? " Receive aString inventory[index].setnumberOnHand(aString); Request "What was the cost of the book? " Receive aString inventory[index].setcostBook(aString) Request "What is the price of the book? " Receive aString inventory[index].setpriceBook(aString) Request "What is the name of the first author? " Receive aString inventory[index].setbookAuthors(0,aString) Request "What is the name of the second author? " Receive aString inventory[index].setbookAuthors(1,aString) Request "What is the name of the third author? " Receive aString inventory[index].setbookAuthors(2,aString) Request "What is the name of the fourth author? " Receive aString inventory[index].setbookAuthors(3,aString) ENDIF RETURN ISBNDisplay(bookInventory inventory[],int const &numberItems) Process clearScreen() Display"What is the ISBN? " Receive aString Set recordNumber = -1 FOR(index = 0; index < numberItems;++index) IF(inventory[index].getISBN() == aString)THEN Set recordNumber = index break ENDIF ENDFOR IF(recordNumber == -1)THEN Process clearScreen() Display "Error. There is no book with that ISBN. Continue? " Receive resp ELSE Process clearScreen() Display "The book name is: " << inventory[index].getbookName() Display "The ISBN is: " << inventory[index].getISBN() Display "The year the book was published: " Display inventory[index].getyearPublished() Display "The number of this book that we have on hand is: " Display inventory[index].getnumberOnHand() Display "The cost of the book was $: " Display inventory[index].getcostBook() Display "The total cost is: $" Display atof((inventory[index].getcostBook()).c_str())* atoi((inventory[index].getnumberOnHand()).c_str()) Display "The price of the book is: $" Display inventory[index].getpriceBook() Display "The total selling price is: $" Display atof((inventory[index].getpriceBook()).c_str())* atoi((inventory[index].getnumberOnHand()).c_str()) Display "The name of the first author is: " Display inventory[index].getbookAuthors(0) Display "The name of the second author is: " Display inventory[index].getbookAuthors(1) Display "The name of the third author is: " Display inventory[index].getbookAuthors(2) Display "The name of the fourth author? " Display inventory[index].getbookAuthors(3) Display "Continue? " Receive resp ENDIF RETURN editItems(inventory[],numberItems) Set recordNumber = -1 Process clearScreen() Display "What is the ISBN? " Receive aString FOR(int index = 0; index < numberItems;++index) IF(inventory[index].getISBN() == aString)THEN Set recordNumber = index break ENDIF ENDFOR IF(recordNumber == -1)THEN Process clearScreen() Display "Error!! There is no such book on record. Continue? " Receive resp ELSE Process clearScreen(); Display "The current data on that book is:" << endl << endl Display "The book name is: " << inventory[index].getbookName() Display "The ISBN is: " << inventory[index].getISBN() Display "The year the book was published: " Display inventory[index].getyearPublished() Display "The number of this book that we have on hand is: " Display inventory[index].getnumberOnHand() Display "The cost of the book was: $" Display inventory[index].getcostBook() Display "The price of the book is: $" Display inventory[index].getpriceBook() Display "The name of the first author is: " Display inventory[index].getbookAuthors(0) Display "The name of the second author is: " Display inventory[index].getbookAuthors(1) Display "The name of the third author is: " Display inventory[index].getbookAuthors(2) Display "The name of the fourth author? " Display inventory[index].getbookAuthors(3) << endl << endl Display "Continue? " Receive resp Display "What is the book name? " Receive aString inventory[index].setbookName(aString) Display "What is the ISBN? " Receive aString inventory[index].setISBN(aString) Display "What is the year the book was published? " Receive aString inventory[index].setyearPublished(aString) Display "How many of this book do we have on hand? " Receive aString inventory[index].setnumberOnHand(aString) Display "What was the cost of the book? " Receive aString inventory[index].setcostBook(aString) Display "What is the price of the book? " Receive aString inventory[index].setpriceBook(aString) Display "What is the name of the first author? " Receive aString inventory[index].setbookAuthors(0,aString) Display "What is the name of the second author? " Receive aString inventory[index].setbookAuthors(1,aString) Display "What is the name of the third author? " Receive aString inventory[index].setbookAuthors(2,aString) Display "What is the name of the fourth author? " ; Receive aString inventory[index].setbookAuthors(3,aString) Display "Continue? " Receive resp ENDIF RETURN deleteItem(bookInventory inventory[],int const &numberItems) Set recordNumber = -1 Process clearScreen(); Display "What is the ISBN of the book you want to delete? " Receive aString FOR(index = 0; index < numberItems;++index) IF(inventory[index].getISBN() == aString)THEN SetrecordNumber = index; break; ENDIF ENDFOR IF(recordNumber == -1)THEN Process clearScreen() Display "Error!! There is no such book on record. Continue? " Receive resp) ELSE Process clearScreen() Display "The current data on the book to be deleted is:" Display "The book name is: " << inventory[index].getbookName() Display "The ISBN is: " << inventory[index].getISBN() Display "The year the book was published: " Display inventory[index].getyearPublished() Display "The number of this book that we have on hand is: " Display inventory[index].getnumberOnHand() Display "The cost of the book was: $" Display inventory[index].getcostBook() Display "The price of the book is: $" Display inventory[index].getpriceBook() Display "The name of the first author is: " Display inventory[index].getbookAuthors(0) Display "The name of the second author is: " Display inventory[index].getbookAuthors(1) Display "The name of the third author is: " Display inventory[index].getbookAuthors(2) Display "The name of the fourth author? " Display inventory[index].getbookAuthors(3) Display "Continue to delete? (Y/N)" Receive resp) IF((resp=='Y') | (resp == 'y'))THEN Set startString = "Start"; Set aString = "****"; Set endString = "End" inventory[index].setbookName(startString) inventory[index].setISBN(aString) inventory[index].setyearPublished(aString) inventory[index].setnumberOnHand(aString) inventory[index].setcostBook(aString) inventory[index].setpriceBook(aString) inventory[index].setbookAuthors(0,aString) inventory[index].setbookAuthors(1,aString) inventory[index].setbookAuthors(2,aString) inventory[index].setbookAuthors(3,endString) ENDIF ENDIF RETURN saveInventory(inventory[],numberItems) OPEN outFile("a:\\inventory.dat"); FOR(index = 0; index < numberItems; ++index) Set aString = inventory[index].getbookName() Save aString to outFile Set aString = inventory[index].getISBN() Save aString to outFile Set aString = inventory[index].getyearPublished() Save aString to outFile Set aString = inventory[index].getnumberOnHand() Save aString to outFile Set aString = inventory[index].getcostBook() Save aString to outFile Set aString = inventory[index].getpriceBook() Save aString to outFile Set aString = inventory[index].getbookAuthors(0) Save aString to outFile Set aString = inventory[index].getbookAuthors(1) Save aString to outFile Set aString = inventory[index].getbookAuthors(2) Save aString to outFile Set aString = inventory[index].getbookAuthors(3) Save aString to outFile ENDFOR outFile.close(); RETURN // program_id salesin.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates file // input of a class object that is // an array. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float theSales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> theSales[gl-3]; cout << endl << "Correct? (Y/N) "; cin.get(ch).get(); }while(ch=='Y' || ch=='y'); } } void showAll() { float totalSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": $" << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<theSales[gl-3]; totalSales +=theSales[gl-3]; } cout << endl << setw(24) << "----------" << endl << "Totals Sales $" << setprecision(2) << setw(10) << setiosflags(ios::fixed) << totalSales; } }; void main() { char resp; Sales today; ifstream infile("sales1.txt",ios::in | ios::binary); infile.read((char *) &today, sizeof(today)); cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); cout << endl << endl << "Continue? (Y/N) "; cin.get(resp).get(); cout << endl << endl; } // program_id salesout.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates output of // a class object. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float theSales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> theSales[gl-3]; cout << endl << "Correct? (Y/N) "; cin.get(ch).get(ch); }while(ch!='Y' && ch!='y'); } } void showAll() { float totalSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": $" << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<theSales[gl-3]; totalSales += theSales[gl-3]; } cout << endl << setw(23) << " ----------"; cout << endl << "Total Sales $" << setprecision(2) << setw(10) << setiosflags(ios::fixed) << totalSales << endl << endl; } }; void main() { Sales today; today.getDate(); today.getSales(); for(int count = 1; count <= 25;++count) cout << endl; cout << flush; cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); ofstream outfile("sales1.txt",ios::out|ios::binary); outfile.write((char *) &today, sizeof(today)); } // program_id salsimny.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates input of // many class objects in an array. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float theSales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> theSales[gl-3]; cout << endl << "Correct? (Y/N) "; cin.get(ch).get(); }while(ch=='Y' || ch=='y'); } } void showAll() { float totalSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": " << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<theSales[gl-3]; totalSales += theSales[gl-3]; } cout << endl << setw(23) << "----------"; cout << endl << "Totals Sales " << setprecision(2) << setw(10) << setiosflags(ios::fixed) << totalSales; } }; void main() { Sales today; int count; char resp='Y', ch; ifstream infile("sales3.txt", ios::in | ios::binary); if(!infile) { cout << "Error. File would not open."; exit(1); } infile.read((char *) &today, sizeof(today)); while((infile) && ((resp=='Y') || (resp=='y'))) { for(int count=1;count<=250;++count) cout << endl; cout << flush; cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); cout << endl << endl << "Would you like to see another record? (Y/N)"; cin.get(resp).get(); if((resp=='Y') || (resp=='y')) infile.read((char *) &today, sizeof(today)); } if(!infile) cout << endl << "That is the last of the data. " << endl << endl; cout << endl << endl << "Continue? "; cin >> ch; cout << endl << endl; } // program_id salsimnycount.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates how to count // the number of records in a binary file. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float theSales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> theSales[gl-3]; cout << endl << "Correct? (Y/N) "; cin.get(ch).get(); }while(ch=='Y' || ch=='y'); } } void showAll() { float totalSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": " << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<theSales[gl-3]; totalSales += theSales[gl-3]; } cout << endl << setw(23) << "----------"; cout << endl << "Totals Sales " << setprecision(2) << setw(10) << setiosflags(ios::fixed) << totalSales; } }; void main() { Sales today; int count; char resp='Y', ch; ifstream infile("sales3.txt", ios::in | ios::binary); if(!infile) { cout << "Error. File would not open."; exit(1); } infile.seekg(0,ios::end); int position = infile.tellg(); int number_records = position / sizeof(today); cout << "There are " << number_records << " recorded. " << endl << endl; infile.seekg(0,ios::beg); infile.read((char *) &today, sizeof(today)); while((infile) && ((resp=='Y') || (resp=='y'))) { for(count=1;count<=25;++count) cout << endl; cout << flush; cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); cout << endl << endl << "Would you like to see another record? (Y/N)"; cin.get(resp).get(); if((resp=='Y') || (resp=='y')) infile.read((char *) &today, sizeof(today)); } if(!infile) cout << endl << "That is the last of the data. " << endl << endl; cout << endl << endl << "Continue? "; cin >> ch; cout << endl << endl; } // program_id salsimnyeof.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates input of // many class objects in an array using the // function eof(). // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float theSales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> theSales[gl-3]; cout << endl << "Correct? (Y/N) "; cin.get(ch).get(); }while(ch=='Y' || ch=='y'); } } void showAll() { float totalSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": " << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<theSales[gl-3]; totalSales += theSales[gl-3]; } cout << endl << setw(23) << "----------"; cout << endl << "Totals Sales " << setprecision(2) << setw(10) << setiosflags(ios::fixed) << totalSales; } }; void main() { sales today; int count; char resp='Y', ch; ifstream infile("sales3.txt", ios::in | ios::binary); if(!infile) { cout << "Error. File would not open."; exit(1); } infile.read((char *) &today, sizeof(today)); while((!infile.eof()) && ((resp=='Y') || (resp=='y'))) { for(count=1;count<=250;++count) cout << endl; cout << flush; cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); cout << endl << endl << "Would you like to see another record? (Y/N)"; cin.get(resp).get(); if((resp=='Y') || (resp=='y')) infile.read((char *) &today, sizeof(today)); } if(!infile) cout << endl << "That is the last of the data. " << endl << endl; cout << endl << endl << "Continue? "; cin >> ch; cout << endl << endl; } // program_id salsimnysee.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates how to count // the number of records in a binary file. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float theSales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> theSales[gl-3]; cout << endl << "Correct? (Y/N) "; cin.get(ch).get(); }while(ch=='Y' || ch=='y'); } } void showAll() { float totalSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": " << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<theSales[gl-3]; totalSales += theSales[gl-3]; } cout << endl << setw(23) << "----------"; cout << endl << "Totals Sales " << setprecision(2) << setw(10) << setiosflags(ios::fixed) << totalSales; } }; void main() { Sales today; char resp='Y', ch; ifstream infile("sales3.txt", ios::in | ios::binary); if(!infile) { cout << "Error. File would not open."; exit(1); } infile.seekg(0,ios::end); int position = infile.tellg(); int numberRecords = position / sizeof(today); int seeRecord; cout << "There are " << numberRecords << " recorded. " << endl << endl; do { do { cout << endl << endl << "Which record do you want to see? "; cin >> seeRecord; if(seeRecord > numberRecords) cout << endl << "Error. That record is beyond the end of the file." << endl << "Try again." << endl << endl; }while(seeRecord > numberRecords); cout << endl << endl; infile.seekg((seeRecord-1)*sizeof(today),ios::beg); infile.read((char *) &today, sizeof(today)); cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); cout << endl << endl << "Would you like to see another record? (Y/N)"; cin.get(resp).get(resp); }while((resp=='Y') || (resp=='y')); cout << endl << endl << "Continue? "; cin >> ch; cout << endl << endl; } // program_id salsomny.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates output of // many class objects. // #include<fstream> #include<iostream> #include<iomanip> using namespace std; class Date { private: int month, day, year; public: void getDate() { char dash; cout << "What is the date? "; cin >> month >> dash >> day >> dash >> year; } int showMonth(){return month;} int showDay(){return day;} int showYear(){return year;} }; class Sales : public Date { private: float dailySales[5]; public: void getSales() { for(int gl = 3; gl<=7;++gl) { char ch, resp; do { cout << endl <<"What is the sales for GL # " << gl << "? "; cin >> dailySales[gl-3]; cout << endl << "Correct? (Y/N) "; resp=' '; cin.get(ch).get(resp).get(); }while((resp!='Y') && (resp!='y')); } } void showAll() { float ttlSales=0.00; for(int gl = 3; gl<=7;++gl) { cout << endl << "Sales GL #" << gl << ": " << setprecision(2) << setw(10) << setiosflags(ios::fixed) <<dailySales[gl-3]; ttlSales += dailySales[gl-3]; } cout << endl << setw(23) << "----------"; cout << endl << "Totals Sales " << setprecision(2) << setw(10) << setiosflags(ios::fixed) << ttlSales; } }; void main() { Sales today; ofstream outfile("sales3.txt",ios::binary | ios::app); char resp; do { for(int count = 1; count <= 50;++count) cout << endl; cout << flush; today.getDate(); today.getSales(); for(int count = 1; count <= 250;++count) cout << endl; cout << flush; cout << "The sales for " << today.showMonth() << "/" << today.showDay() << "/" << today.showYear() << endl << endl; today.showAll(); outfile.write((char *) &today, sizeof(today)); cout << endl << endl << "Store another day's sales? (Y/N) "; resp=' '; cin.get(resp).get(); }while((resp=='Y') || (resp=='y')); cout << endl << endl; } // program_id sc_doinventory.gif // written_by don voils // date_written 2/3/2007 // description This is the structure chart for the program doInventory.cpp // 
// program_id textin.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates input of // strings and characters from a disk file // one character at a time. // #include<fstream> #include<iostream> using namespace std; void main() { char ch; ifstream inFile("testing.txt"); if(!inFile) { cout << "Error opening the file."; exit(1); } // // Look at the data file. Notice that it contains text. // Notice further that a number was sent the the file // yet it was stored as text. When it is read in, it appears // to be a number but it is text. Each character is set out // and retrieved as a single character. // inFile.get(ch); while(inFile) { cout << ch; inFile.get(ch); } cout << endl << endl; cout << "Continue? "; cin >> ch; cout << endl << endl; } // program_id textout.cpp // author don voils // date written 11/25/2006 // // description This program demonstrates output // of strings or numbers to a diskfile // in ASCII text format. // #include<fstream> #include<iostream> using namespace std; void main() { char* text = "This is a test string."; int aNumber = 125; ofstream outFile("testing.txt"); if(!outFile) { cout << "File did not open." ; exit(1); } outFile << "This is a test of outputing text in line 1." << endl; outFile << "This is a test of outputing text in line 2." << endl; outFile << "This is a test of outputing text in line 3." << endl; outFile << "This is a test of outputing text in line 4." << endl; outFile << text << endl; outFile << "The number = " << aNumber; char ch; cout << endl << endl; cout << "Continue? "; cin >> ch; cout << endl << endl; } // program-id theFunctions.h // written-by Don Voils // date written 5/27/2006 // // Description This file contains the definition of the // function that are the modules for the // program doInventory.cpp. // #include<iostream> #include<string> #include<fstream> #include<iomanip> #include<cstdlib> using namespace std; // The defintion of the bookInventory class // must be included into the program. // #include"bookInventory.h" // This function is used to clear the screen for // a better user presentation. // void clearScreen() { for(int loop_counter=0;loop_counter<=250;++loop_counter) cout << endl; } // This function is used to load from file the book records // and then stores them into the inventory array. // void loadInventory(bookInventory inventory[],int const &numberItems) { // The data file that holds the inventory is opened // ifstream inFile("inventory.dat"); // If the file is empty, then it is filled with // empty data. // if(!inFile) { string startString = "Start"; string aString = "****"; //cout << "Starting." << endl; //char resp; //cin.get(resp).get(); for(int index = 0; index < numberItems;++index) { inventory[index].setbookName(startString); inventory[index].setISBN(aString); inventory[index].setyearPublished(aString); inventory[index].setnumberOnHand(aString); inventory[index].setcostBook(aString); inventory[index].setpriceBook(aString); inventory[index].setbookAuthors(0,aString); inventory[index].setbookAuthors(1,aString); inventory[index].setbookAuthors(2,aString); inventory[index].setbookAuthors(3,"end"); } } else { // If the file is not empty, it is input into // the array of inventory items array. // string aString; for(int index = 0;index<numberItems;++index) { getline(inFile,aString); inventory[index].setbookName(aString); getline(inFile,aString); inventory[index].setISBN(aString); getline(inFile,aString); inventory[index].setyearPublished(aString); getline(inFile,aString); inventory[index].setnumberOnHand(aString); getline(inFile,aString); inventory[index].setcostBook(aString); getline(inFile,aString); inventory[index].setpriceBook(aString); getline(inFile,aString); inventory[index].setbookAuthors(0,aString); getline(inFile,aString); inventory[index].setbookAuthors(1,aString); getline(inFile,aString); inventory[index].setbookAuthors(2,aString); getline(inFile,aString); inventory[index].setbookAuthors(3,aString); } } inFile.close(); } // This function permits the entry of a book records. It first // finds an empty record in the inventory array and then permits // the individual data items to be entered into the particular record. // void enterNewRecords(bookInventory inventory[],int const &numberItems) { // The inventory array is searched for an empty record. // int recordNumber = -1; for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == "****") { recordNumber = index; break; } } // If the inventory array has no more empty records, the // user is notified of that case. // if(recordNumber == -1) { clearScreen(); cout << "Error file is full. Continue? " << endl; char resp; cin.get(resp).get(); } else { // If the inventory array has an empty record, // the data is entered into that record. // clearScreen(); string aString; cout << "What is the book name? "; getline(cin,aString); inventory[index].setbookName(aString); cout << endl << "What is the ISBN? "; getline(cin,aString); inventory[index].setISBN(aString); cout << endl << "What is the year the book was published? "; getline(cin,aString); inventory[index].setyearPublished(aString); cout << endl << "How many of this book do we have on hand? "; getline(cin,aString); inventory[index].setnumberOnHand(aString); cout << endl << "What was the cost of the book? "; getline(cin,aString); inventory[index].setcostBook(aString); cout << endl << "What is the price of the book? "; getline(cin,aString); inventory[index].setpriceBook(aString); cout << endl << "What is the name of the first author? "; getline(cin,aString); inventory[index].setbookAuthors(0,aString); cout << endl << "What is the name of the second author? "; getline(cin,aString); inventory[index].setbookAuthors(1,aString); cout << endl << "What is the name of the third author? "; getline(cin,aString); inventory[index].setbookAuthors(2,aString); cout << endl << "What is the name of the fourth author? "; getline(cin,aString); inventory[index].setbookAuthors(3,aString); } } // This function displays the data values of a particular record // given the ISBN of the book. // void ISBNDisplay(bookInventory inventory[],int const &numberItems) { string aString; clearScreen(); // The ISBN of the record to be displayed is requested. // cout << "What is the ISBN? "; getline(cin,aString); // The manipulators for output is set up. // cout << setprecision(2); cout << fixed; // The inventory array is searched to determine // whether a record exists with the requested // ISBN. // int recordNumber = -1; for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == aString) { recordNumber = index; break; } } // If no record exists for the requested ISBN, // an error message is returned. // if(recordNumber == -1) { clearScreen(); cout << "Error. There is no book with that ISBN. Continue? "; char resp; cin.get(resp).get(); } else { // When the record for the requested ISBN book exists, // the data for the book is displayed. // clearScreen(); cout << "The book name is: " << inventory[index].getbookName() << endl << "The ISBN is: " << inventory[index].getISBN() << endl << "The year the book was published: " << inventory[index].getyearPublished() << endl << "The number of this book that we have on hand is: " << inventory[index].getnumberOnHand() << endl << "The cost of the book was $: " << inventory[index].getcostBook() << endl << "The total cost is: $" << atof((inventory[index].getcostBook()).c_str())* atoi((inventory[index].getnumberOnHand()).c_str()) << endl << "The price of the book is: $" << inventory[index].getpriceBook() << endl << "The total selling price is: $" << atof((inventory[index].getpriceBook()).c_str())* atoi((inventory[index].getnumberOnHand()).c_str()) << endl << "The name of the first author is: " << inventory[index].getbookAuthors(0) << endl << "The name of the second author is: " << inventory[index].getbookAuthors(1) << endl << "The name of the third author is: " << inventory[index].getbookAuthors(2) << endl << "The name of the fourth author? " << inventory[index].getbookAuthors(3) << endl << endl; cout << "Continue? "; char resp; cin.get(resp).get(); } } // This function permits the editing of the individual record items // one at a time given an the ISBN of the book. // void editItems(bookInventory inventory[],int const &numberItems) { string aString; char resp; int recordNumber = -1; // The ISBN for the record to be edited is requested. // clearScreen(); cout << "What is the ISBN? "; getline(cin,aString); for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == aString) { recordNumber = index; break; } } // If no book exists in the inventory array with the // requested ISBN, an error message is returned. // if(recordNumber == -1) { clearScreen(); cout << "Error!! There is no such book on record. Continue? "; cin.get(resp).get(); } else { // The current data for the book with the requested // ISBN is displayed. // clearScreen(); cout << "The current data on that book is:" << endl << endl << "The book name is: " << inventory[index].getbookName() << endl << "The ISBN is: " << inventory[index].getISBN() << endl << "The year the book was published: " << inventory[index].getyearPublished() << endl << "The number of this book that we have on hand is: " << inventory[index].getnumberOnHand() << endl << "The cost of the book was: $" << inventory[index].getcostBook() << endl << "The price of the book is: $" << inventory[index].getpriceBook() << endl << "The name of the first author is: " << inventory[index].getbookAuthors(0) << endl << "The name of the second author is: " << inventory[index].getbookAuthors(1) << endl << "The name of the third author is: " << inventory[index].getbookAuthors(2) << endl << "The name of the fourth author? " << inventory[index].getbookAuthors(3) << endl << endl; cout << "Continue? "; cin.get(resp).get(); // The new data for the record is requested. // cout << endl << endl << "What is the book name? "; getline(cin,aString); inventory[index].setbookName(aString); cout << endl << "What is the ISBN? "; getline(cin,aString); inventory[index].setISBN(aString); cout << endl << "What is the year the book was published? "; getline(cin,aString); inventory[index].setyearPublished(aString); cout << endl << "How many of this book do we have on hand? "; getline(cin,aString); inventory[index].setnumberOnHand(aString); cout << endl << "What was the cost of the book? "; getline(cin,aString); inventory[index].setcostBook(aString); cout << endl << "What is the price of the book? "; getline(cin,aString); inventory[index].setpriceBook(aString); cout << endl << "What is the name of the first author? "; getline(cin,aString); inventory[index].setbookAuthors(0,aString); cout << endl << "What is the name of the second author? "; getline(cin,aString); inventory[index].setbookAuthors(1,aString); cout << endl << "What is the name of the third author? "; getline(cin,aString); inventory[index].setbookAuthors(2,aString); cout << endl << "What is the name of the fourth author? "; getline(cin,aString); inventory[index].setbookAuthors(3,aString); cout << endl << "Continue? "; cin.get(resp).get(); } } // This function permits the deleting from a record that has been // selected by using the ISBN. It first asks for the ISBN and then // if the user desires it to be deleted the record is filed with // empty data. // void deleteItem(bookInventory inventory[],int const &numberItems) { string aString; char resp; int recordNumber = -1; clearScreen(); // The ISBN for the book to be deleted is requested. // cout << "What is the ISBN of the book you want to delete? "; getline(cin,aString); // The records of the inventory array are searched to // find the record with the requested ISBN. // for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == aString) { recordNumber = index; break; } } // If no record exists with the requested ISBN, // an error message is returned. // if(recordNumber == -1) { clearScreen(); cout << "Error!! There is no such book on record. Continue? "; cin.get(resp).get(); } else { clearScreen(); // If the record exists, the data is displayed in order // for the user to check to ensure that the record found // is the record to be deleted. // cout << "The current data on the book to be deleted is:" << endl << endl << "The book name is: " << inventory[index].getbookName() << endl << "The ISBN is: " << inventory[index].getISBN() << endl << "The year the book was published: " << inventory[index].getyearPublished() << endl << "The number of this book that we have on hand is: " << inventory[index].getnumberOnHand() << endl << "The cost of the book was: $" << inventory[index].getcostBook() << endl << "The price of the book is: $" << inventory[index].getpriceBook() << endl << "The name of the first author is: " << inventory[index].getbookAuthors(0) << endl << "The name of the second author is: " << inventory[index].getbookAuthors(1) << endl << "The name of the third author is: " << inventory[index].getbookAuthors(2) << endl << "The name of the fourth author? " << inventory[index].getbookAuthors(3) << endl << endl; cout << "Continue to delete? (Y/N)"; cin.get(resp).get(); // The user is requested to confirm that the displayed data // is the record to be deleted. If it is, then the // record is filled with empty data. // if((resp=='Y') | (resp == 'y')) { string startString = "Start"; string aString = "****"; string endString = "End"; inventory[index].setbookName(startString); inventory[index].setISBN(aString); inventory[index].setyearPublished(aString); inventory[index].setnumberOnHand(aString); inventory[index].setcostBook(aString); inventory[index].setpriceBook(aString); inventory[index].setbookAuthors(0,aString); inventory[index].setbookAuthors(1,aString); inventory[index].setbookAuthors(2,aString); inventory[index].setbookAuthors(3,endString); } } } // This function stores the data that is contained in the // inventory array into the file for later use. This is // called prior to the program ending. // void saveInventory(bookInventory inventory[],int const &numberItems) { // The data file is opened for outputing the records // that are stored in the inventory array prior to // ending the program. // string aString; ofstream outFile("inventory.dat"); // Each record in the inventory array is sent to // the data file. // for(int index = 0; index < numberItems; ++ index) { aString = inventory[index].getbookName(); outFile << aString << endl; aString = inventory[index].getISBN(); outFile << aString << endl; aString = inventory[index].getyearPublished(); outFile << aString << endl; aString = inventory[index].getnumberOnHand(); outFile << aString << endl; aString = inventory[index].getcostBook(); outFile << aString << endl; aString = inventory[index].getpriceBook(); outFile << aString << endl; aString = inventory[index].getbookAuthors(0); outFile << aString << endl; aString = inventory[index].getbookAuthors(1); outFile << aString << endl; aString = inventory[index].getbookAuthors(2); outFile << aString << endl; aString = inventory[index].getbookAuthors(3); outFile << aString << endl; } outFile.close(); } // program-id theNewFunctions.h // written-by Don Voils // date written 5/27/2006 // // Description This file contains the definition of the // function that are the modules for the // program doInventory.cpp. This is a modification // of the header file: theFunctions.h // #include<iostream> #include<string> #include<fstream> #include<iomanip> #include<cstdlib> using namespace std; // The defintion of the bookInventory class // must be included into the program. // #include"bookInventory.h" // This function is used to clear the screen for // a better user presentation. // void clearScreen() { for(int loop_counter=0;loop_counter<=250;++loop_counter) cout << endl; } // This function is used to load from file the book records // and then stores them into the inventory array. // void loadBinaryInventory(bookInventory inventory[],int const &numberItems) { // The data file that holds the inventory is opened // ifstream inFile("binaryinventory.dat",ios::binary|ios::in); // If the file is empty, then it is filled with // empty data. // if(!inFile) { string startString = "Start"; string aString = "****"; //cout << "Starting." << endl; //char resp; //cin.get(resp).get(); for(int index = 0; index < numberItems;++index) { inventory[index].setbookName(startString); inventory[index].setISBN(aString); inventory[index].setyearPublished(aString); inventory[index].setnumberOnHand(aString); inventory[index].setcostBook(aString); inventory[index].setpriceBook(aString); inventory[index].setbookAuthors(0,aString); inventory[index].setbookAuthors(1,aString); inventory[index].setbookAuthors(2,aString); inventory[index].setbookAuthors(3,"end"); } } else { // If the file is not empty, it is input into // the array of inventory items array. // string aString; for(int index = 0;index<numberItems;++index) { inFile.read((char*)&inventory[index],sizeof(inventory[index])); } } inFile.close(); } // This function permits the entry of a book records. It first // finds an empty record in the inventory array and then permits // the individual data items to be entered into the particular record. // void enterNewRecords(bookInventory inventory[],int const &numberItems) { // The inventory array is searched for an empty record. // int recordNumber = -1; for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == "****") { recordNumber = index; break; } } // If the inventory array has no more empty records, the // user is notified of that case. // if(recordNumber == -1) { clearScreen(); cout << "Error file is full. Continue? " << endl; char resp; cin.get(resp).get(); } else { // If the inventory array has an empty record, // the data is entered into that record. // clearScreen(); string aString; cout << "What is the book name? "; getline(cin,aString); inventory[index].setbookName(aString); cout << endl << "What is the ISBN? "; getline(cin,aString); inventory[index].setISBN(aString); cout << endl << "What is the year the book was published? "; getline(cin,aString); inventory[index].setyearPublished(aString); cout << endl << "How many of this book do we have on hand? "; getline(cin,aString); inventory[index].setnumberOnHand(aString); cout << endl << "What was the cost of the book? "; getline(cin,aString); inventory[index].setcostBook(aString); cout << endl << "What is the price of the book? "; getline(cin,aString); inventory[index].setpriceBook(aString); cout << endl << "What is the name of the first author? "; getline(cin,aString); inventory[index].setbookAuthors(0,aString); cout << endl << "What is the name of the second author? "; getline(cin,aString); inventory[index].setbookAuthors(1,aString); cout << endl << "What is the name of the third author? "; getline(cin,aString); inventory[index].setbookAuthors(2,aString); cout << endl << "What is the name of the fourth author? "; getline(cin,aString); inventory[index].setbookAuthors(3,aString); } } // This function displays the data values of a particular record // given the ISBN of the book. // void ISBNDisplay(bookInventory inventory[],int const &numberItems) { string aString; clearScreen(); // The ISBN of the record to be displayed is requested. // cout << "What is the ISBN? "; getline(cin,aString); // The manipulators for output is set up. // cout << setprecision(2); cout << fixed; // The inventory array is searched to determine // whether a record exists with the requested // ISBN. // int recordNumber = -1; for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == aString) { recordNumber = index; break; } } // If no record exists for the requested ISBN, // an error message is returned. // if(recordNumber == -1) { clearScreen(); cout << "Error. There is no book with that ISBN. Continue? "; char resp; cin.get(resp).get(); } else { // When the record for the requested ISBN book exists, // the data for the book is displayed. // clearScreen(); cout << "The book name is: " << inventory[index].getbookName() << endl << "The ISBN is: " << inventory[index].getISBN() << endl << "The year the book was published: " << inventory[index].getyearPublished() << endl << "The number of this book that we have on hand is: " << inventory[index].getnumberOnHand() << endl << "The cost of the book was $: " << inventory[index].getcostBook() << endl << "The total cost is: $" << atof((inventory[index].getcostBook()).c_str())* atoi((inventory[index].getnumberOnHand()).c_str()) << endl << "The price of the book is: $" << inventory[index].getpriceBook() << endl << "The total selling price is: $" << atof((inventory[index].getpriceBook()).c_str())* atoi((inventory[index].getnumberOnHand()).c_str()) << endl << "The name of the first author is: " << inventory[index].getbookAuthors(0) << endl << "The name of the second author is: " << inventory[index].getbookAuthors(1) << endl << "The name of the third author is: " << inventory[index].getbookAuthors(2) << endl << "The name of the fourth author? " << inventory[index].getbookAuthors(3) << endl << endl; cout << "Continue? "; char resp; cin.get(resp).get(); } } // This function permits the editing of the individual record items // one at a time given an the ISBN of the book. // void editItems(bookInventory inventory[],int const &numberItems) { string aString; char resp; int recordNumber = -1; // The ISBN for the record to be edited is requested. // clearScreen(); cout << "What is the ISBN? "; getline(cin,aString); for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == aString) { recordNumber = index; break; } } // If no book exists in the inventory array with the // requested ISBN, an error message is returned. // if(recordNumber == -1) { clearScreen(); cout << "Error!! There is no such book on record. Continue? "; cin.get(resp).get(); } else { // The current data for the book with the requested // ISBN is displayed. // clearScreen(); cout << "The current data on that book is:" << endl << endl << "The book name is: " << inventory[index].getbookName() << endl << "The ISBN is: " << inventory[index].getISBN() << endl << "The year the book was published: " << inventory[index].getyearPublished() << endl << "The number of this book that we have on hand is: " << inventory[index].getnumberOnHand() << endl << "The cost of the book was: $" << inventory[index].getcostBook() << endl << "The price of the book is: $" << inventory[index].getpriceBook() << endl << "The name of the first author is: " << inventory[index].getbookAuthors(0) << endl << "The name of the second author is: " << inventory[index].getbookAuthors(1) << endl << "The name of the third author is: " << inventory[index].getbookAuthors(2) << endl << "The name of the fourth author? " << inventory[index].getbookAuthors(3) << endl << endl; cout << "Continue? "; cin.get(resp).get(); // The new data for the record is requested. // cout << endl << endl << "What is the book name? "; getline(cin,aString); inventory[index].setbookName(aString); cout << endl << "What is the ISBN? "; getline(cin,aString); inventory[index].setISBN(aString); cout << endl << "What is the year the book was published? "; getline(cin,aString); inventory[index].setyearPublished(aString); cout << endl << "How many of this book do we have on hand? "; getline(cin,aString); inventory[index].setnumberOnHand(aString); cout << endl << "What was the cost of the book? "; getline(cin,aString); inventory[index].setcostBook(aString); cout << endl << "What is the price of the book? "; getline(cin,aString); inventory[index].setpriceBook(aString); cout << endl << "What is the name of the first author? "; getline(cin,aString); inventory[index].setbookAuthors(0,aString); cout << endl << "What is the name of the second author? "; getline(cin,aString); inventory[index].setbookAuthors(1,aString); cout << endl << "What is the name of the third author? "; getline(cin,aString); inventory[index].setbookAuthors(2,aString); cout << endl << "What is the name of the fourth author? "; getline(cin,aString); inventory[index].setbookAuthors(3,aString); cout << endl << "Continue? "; cin.get(resp).get(); } } // This function permits the deleting from a record that has been // selected by using the ISBN. It first asks for the ISBN and then // if the user desires it to be deleted the record is filed with // empty data. // void deleteItem(bookInventory inventory[],int const &numberItems) { string aString; char resp; int recordNumber = -1; clearScreen(); // The ISBN for the book to be deleted is requested. // cout << "What is the ISBN of the book you want to delete? "; getline(cin,aString); // The records of the inventory array are searched to // find the record with the requested ISBN. // for(int index = 0; index < numberItems;++index) { if(inventory[index].getISBN() == aString) { recordNumber = index; break; } } // If no record exists with the requested ISBN, // an error message is returned. // if(recordNumber == -1) { clearScreen(); cout << "Error!! There is no such book on record. Continue? "; cin.get(resp).get(); } else { clearScreen(); // If the record exists, the data is displayed in order // for the user to check to ensure that the record found // is the record to be deleted. // cout << "The current data on the book to be deleted is:" << endl << endl << "The book name is: " << inventory[index].getbookName() << endl << "The ISBN is: " << inventory[index].getISBN() << endl << "The year the book was published: " << inventory[index].getyearPublished() << endl << "The number of this book that we have on hand is: " << inventory[index].getnumberOnHand() << endl << "The cost of the book was: $" << inventory[index].getcostBook() << endl << "The price of the book is: $" << inventory[index].getpriceBook() << endl << "The name of the first author is: " << inventory[index].getbookAuthors(0) << endl << "The name of the second author is: " << inventory[index].getbookAuthors(1) << endl << "The name of the third author is: " << inventory[index].getbookAuthors(2) << endl << "The name of the fourth author? " << inventory[index].getbookAuthors(3) << endl << endl; cout << "Continue to delete? (Y/N)"; cin.get(resp).get(); // The user is requested to confirm that the displayed data // is the record to be deleted. If it is, then the // record is filled with empty data. // if((resp=='Y') | (resp == 'y')) { string startString = "Start"; string aString = "****"; string endString = "End"; inventory[index].setbookName(startString); inventory[index].setISBN(aString); inventory[index].setyearPublished(aString); inventory[index].setnumberOnHand(aString); inventory[index].setcostBook(aString); inventory[index].setpriceBook(aString); inventory[index].setbookAuthors(0,aString); inventory[index].setbookAuthors(1,aString); inventory[index].setbookAuthors(2,aString); inventory[index].setbookAuthors(3,endString); } } } // This function stores the data that is contained in the // inventory array into the file for later use. This is // called prior to the program ending. This is a modification of // the function saveInventory(). // void saveBinaryInventory(bookInventory inventory[],int const &numberItems) { // The data file is opened for outputing the records // that are stored in the inventory array prior to // ending the program. // string aString; ofstream outFile("binaryinventory.dat",ios::out|ios::binary); // Each record in the inventory array is sent to // the data file. // for(int index = 0; index < numberItems; ++ index) { outFile.write((char*)&inventory[index],sizeof(inventory[index])); } outFile.close(); } // program_id truncate.cpp // author don voils // date written 3/25/2006 // // description This program demonstrates output // by truncating the data in a diskfile. // #include<fstream> #include<iostream> using namespace std; void main() { float theHourlyRate = 125.50; int hoursWorked = 45; ofstream outfile("testin2.txt",ios::ate); if(!outfile) { cout << "File did not open." << endl << endl; exit(1); } outfile << "George" << endl; outfile << "Thomas" << endl; outfile << "Accountant" << endl; outfile << theHourlyRate << endl; outfile << hoursWorked << endl; } 
Intermediate Business Programming with C++
ISBN: 738453099
EAN: N/A
EAN: N/A
Year: 2007
Pages: 142
Pages: 142