Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
9th Edition
ISBN: 9780134443829
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 15, Problem 9PC
File Filter
A file filter reads an input file, transforms it in some way, and writes the results to an output File. Write an abstract file filter class that defines a pure virtual function for transforming a character. Create one derived class of your file filter class that performs encryption, another that transforms a file to all uppercase, and another that creates an unchanged copy of the original file. The class should have the following member function:
void doFilterfifstream &in, ofstream &out)
This function should be called to perform the actual filtering. The member function for transforming a single character should have the prototype:
char transformfehar ch)
The encryption class should have a constructor that takes an integer as an argument and uses it as the encryption key.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
createDatabaseOfProfiles(String filename) This method creates and populates the database array with the profiles from the input file (profile.txt) filename parameter. Each profile includes a persons' name and two DNA sequences. 1. Reads the number of profiles from the input file AND create the database array to hold that number profiles.
2. Reads the profiles from the input file.
3. For each person in the file
1. creates a Profile object with the information from file (see input file format below).
2. insert the newly created profile into the next position in the database array (instance variable).
Assessment Description
Honors Students: Complete this assignment according to the directions provided in the "Honors Addendum," located in Class Resources.
This activity has multiple parts. All parts must be completed prior to documentation submission.
Part 1: Reading and Writing Text Files.
In this activity, you will learn how to read and write text files using non buffered and buffered File I/O classes, then learn how to parse a String into tokens using the String split() method, and finally, how to handle exceptions using various approaches.
Part 2: Reading and Writing JSON Files.
In this activity, you will learn how to read, write, and serialize JSON files to and from Java Objects.
Refer to the instructions within "Activity 4 Guide" to complete the assignment.
APA style is not required, but solid academic writing is expected.
This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful…
The functionality of each file is described below:Class BankAccount This class has two instance variables:namebalanceCreate a constructor that takes two parameters to initialize the instance variables name and balance. The name must not be an empty string. The name also must not include any numbers or symbols. The balance must be zero or more to be used.If the name was an empty string a Value Error will be raised with the message “name cannot be empty”If the name contained numbers or symbols a Value Error will be raised with the message “name cannot include numbers or symbols”If the name was valid, it will be formatted properly and assigned to the instance variable. The valid name consists of alphabetical characters lowercase or upper case, may include space, underscore or hyphen.The name may consist of first, middle and last name.One way to validate the name is using Regular Expressions.Proper name format is the first character uppercase and the rest of the name lowercase character.…
Chapter 15 Solutions
Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
Ch. 15.1 - Here is the first line of a class declaration....Ch. 15.1 - What is the name of the derived class in the...Ch. 15.1 - Suppose a program has the following class...Ch. 15.2 - What is the difference between private members and...Ch. 15.2 - What is the difference between member access...Ch. 15.2 - Suppose a program has the following class...Ch. 15.3 - What will the following program display? #include...Ch. 15.3 - What will the following program display? #include...Ch. 15.7 - Explain the difference between overloading a...Ch. 15.7 - Prob. 15.10CP
Ch. 15.7 - Prob. 15.11CPCh. 15.7 - What will the following program display? #include...Ch. 15.7 - What will the following program display? #include...Ch. 15.7 - What will the following program display? #include...Ch. 15.7 - What will the following program display? #include...Ch. 15.8 - Does the following diagram depict multiple...Ch. 15.8 - Does the following diagram depict multiple...Ch. 15.8 - Examine the following classes. The table lists the...Ch. 15.8 - Examine the following class declarations: class...Ch. 15 - What is an is a relationship?Ch. 15 - A program uses two classes: Dog and Poodle. Which...Ch. 15 - How does base class access specification differ...Ch. 15 - What is the difference between a protected class...Ch. 15 - Can a derived class ever directly access the...Ch. 15 - Which constructor is called first, that of the...Ch. 15 - What is the difference between redefining a base...Ch. 15 - Prob. 8RQECh. 15 - What is an abstract base class?Ch. 15 - A program has a class Potato, which is derived...Ch. 15 - What base class is named in the line below?class...Ch. 15 - What derived class is named in the line below?...Ch. 15 - What is the class access specification of the base...Ch. 15 - What is the class access specification of the base...Ch. 15 - Protected members of a base class are like...Ch. 15 - Complete the table on the next page by filling in...Ch. 15 - Complete the table below by filling in private,...Ch. 15 - Complete the table below by filling in private,...Ch. 15 - A derived class inherits the ________ of its base...Ch. 15 - When both a base class and a derived class have...Ch. 15 - An overridden base class function may be called by...Ch. 15 - When a derived class redefines a function in a...Ch. 15 - A(n) __________ member function in a base class...Ch. 15 - ________ binding is when the compiler binds member...Ch. 15 - __________ binding is when a function call is...Ch. 15 - _________ is when member functions in a class...Ch. 15 - When a pointer to a base class is made to point to...Ch. 15 - A(n) __________ class cannot be instantiated.Ch. 15 - A(n) _______ function has no body, or definition,...Ch. 15 - A(n) _________ of inheritance is where one class...Ch. 15 - _______ is where a derived class has two or more...Ch. 15 - In multiple inheritance, the derived class should...Ch. 15 - Write the first line of the declaration for a...Ch. 15 - Write the first line of the declaration for a...Ch. 15 - Suppose a class named Tiger is derived from both...Ch. 15 - Write the declaration for class B. The classs...Ch. 15 - T F The base classs access specification affects...Ch. 15 - T F The base classs access specification affects...Ch. 15 - T F Private members of a private base class become...Ch. 15 - T F Public members of a private base class become...Ch. 15 - T F Protected members of a private base class...Ch. 15 - T F Public members of a protected base class...Ch. 15 - T F Private members of a protected base class...Ch. 15 - T F Protected members of a public base class...Ch. 15 - T F The base class constructor is called after the...Ch. 15 - T F The base class destructor is called after the...Ch. 15 - T F It isnt possible for a base class to have more...Ch. 15 - T F Arguments are passed to the base class...Ch. 15 - T F A member function of a derived class may not...Ch. 15 - Prob. 51RQECh. 15 - T F A base class may not be derived from another...Ch. 15 - class Car, public Vehicle { public: Car(); Car();...Ch. 15 - class Truck, public : Vehicle, protected {...Ch. 15 - class SnowMobile : Vehicle { protected: int...Ch. 15 - class Table : public Furniture { protected: int...Ch. 15 - class Tank : public Cylinder { private: int...Ch. 15 - class Three : public Two : public One { protected:...Ch. 15 - Employee and ProductionWorker Classes Design a...Ch. 15 - ShiftSupervisor Class In a particular factory, a...Ch. 15 - TeamLeader Class In a particular factory, a team...Ch. 15 - Prob. 4PCCh. 15 - Time Clock Design a class named TimeClock. The...Ch. 15 - Essay Class Design an Essay class that is derived...Ch. 15 - PersonData and CustoraerData Classes Design a...Ch. 15 - PreferredCustomer Class A retail store has a...Ch. 15 - File Filter A file filter reads an input file,...Ch. 15 - File Double-Spacer Create a derived class of the...Ch. 15 - Course Grades In a course, a teacher gives the...Ch. 15 - Ship. CruiseShip, and CargoShip Classes Design a...Ch. 15 - Pure Abstract Base Class Project Define a pure...Ch. 15 - Prob. 14PC
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Type in and run the six programs presented in this chapter. Compare the output produced by each program with th...
Programming in C
T F: A local variable may be accessed by any other procedure in the same Form file.
Starting Out With Visual Basic (7th Edition)
You should not write code that modifies the contents of the counter variable in the body of a For loop.
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
In one approach to identifying the classes in a problem, the programmer identifies the _______ in a description...
Starting Out with Python (3rd Edition)
Rewrite the programs TestBreak and TestContinue in Listings 5.12 and 5.13 without using break and continue.
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Combine the statements that you wrote in Exercise 4.5 into a Java application that calculates and prints the su...
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Challenge Activity 1: Word List File Writer and Reader (a)Write a console and GUI program using *PYTHON* that asks the user how many words they would like to write to a file, and then asks the user to enter that many words, one at a time. The words should be written to a file. (b) Write another program that reads the words from the file and displays the following data: The number of words in the file. The longest word in the file. The average length of all of the words in the file.arrow_forwardFirst programming homework Create a class of records for a gradebook called Rec. The data should be private, and should include a firstname, lastname, array of three grades, and a field for average grade. Build two constructors: a default constructor and a constructor that takes the first and last name. Build a function to read the data, either from a file or from cin. The read function reads the two names and three grades, but does not read the average grade. Build a write function that writes the data either to a file or to cout. The write function prints all of the data on one line with spaces between fields. Build a function to calculate the average grade field. Build an overloaded operator == to compare two records. This should be implemented as a friend function. Declare the constructors and functions in the body of the class, but implement them outside the class. I will provide you with a driver called hw1.cpp in ~cthorpe/public/142 and with a test file HW1.txt in the same…arrow_forwardC++arrow_forward
- Sample run: Your 1st vector contains the following elements January February March April May June July August September October November December Your 2nd vector contains the following elements May June Julyarrow_forwardPut the class definition in EV.h and the implementation of the constructors and functions in EV.cpp 1. Define a class called "EV", that represents the information of an electric vehicle. The EV is defined with these attributes: model (string), range(int), unit (string) and year (int). Functions of the EV class must perform the following operations: 1. A default constructor which sets all the numeric instance variables to zero. 2. A constructor with 4 parameters which sets the 4 instance variables to the corresponding values passed. 3. Implement a getter function for each of the 4 instance variables that will return the value of the instance variable. For example, the getX() function for the instance variable model must be called getModel(). 4. Implement a setter function for each instance variable that will assign to the instance variable to the value passed. For example, the setX() function for the instance variable model must be called setModel(). 5. An info function: this function…arrow_forwardc++ ▪ Create Class Student Using header and cpp file (.h & .cpp). ▪Data Members: Name , ID and GPA. ▪Member Functions: DisplayStudentDetails >> this function prints the Name, ID and GPA of the studentarrow_forward
- Program language: C++ A publishing company markets both hardcopy and eBook versions of its work. Create a class publication that stores the title and price of a publication. From this class derive two classes: book, which adds a page count, and digital, which adds a storage capacity in MG bytes. Each of these classes should have a getdata() function to get its data from the user at the keyboard and put a putdata() function to display its data. Add a base class sales that hold an array of three floats so that it can record the dollar sales of a particular publication for the last three months. Include a getData() function to get three sales amounts from the user and a putdata() function to display the sales figures. Modify the book and digital classes so they are derived from both publication and sales. An object of the class book or digital should input and output sales data along with its other data. Write the main function to create a book object and a digital object and test their…arrow_forwardThe struct song is defined as : typedef struct { char* title; char* artist; int year; } song; Write the following two functions maintaining a database of entries of type song in a file in c language . (int add_song(const char* file_name, const song s);The function gets the name of a file, and a song. If the song is not in the file, the function adds it to the file and returns 1. Otherwise, the function does not modify the file and returns 0. song* find_song(const char* file_name, const char* title); The function gets the name of a file and a title of a song. It searches the file for the song with the given title. If a song is found, it returns a pointer to the song with all the details. If not found, the function returns NULL. You may assume the song titles are unique.arrow_forwardTRUE FALSE The dereference operator * is used to obtain the address of a variable. The void functions return noting when called. the flag eof() is FALSE at the beginning of a text file. There is no way to show text on graphic screen The reserved word struct is used when declaring a void function.arrow_forward
- True/ False 1- Class objects can be defined prior to the class declaration. 2- You must use the private access specification for all data members of a class. 3- If an array is partially initialized, the uninitialized elements will be set to zero. 4- A vector object automatically expands in size to accommodate the items stored in it. 5- With pointer variables, you can access but not modify data in other variables. 6- Assuming myValues is an array of int values and index is an int variable, both of the following statements do the same thing. 1. cout header file. 15- To solve a problem recursively, you must identify at least one case in which the problem can be solved without recursion.arrow_forwardAssignment 1 University Library SystemIn this assignment you are going to implement your own version of university library system,The system will have two different sides , the first one is to help the librarian to do his job and the other side for admin to manage every one permissions in the system , so You should provide the following features in your system: Admin viewo Add/remove Studentso Add/remove librariano Add/remove other admins Librarian viewo Add/Delete bookso Issue/Return bookso View bookso View Issued bookso Log in /log outo Search for the book(id/name) Simple backend for your system , You could use a file each row should represent item o Books File should be something like:Id , Book Name, Author Name, Available quantity, Issued Quantity 1,Oliver Twist, Charles Dickens,98,2In the previous the first row was the name of each column , you can do that orhandle it in your code , id =1 , Book Name =Oliver Twist ..Etc. Tables neededo Books Id Book Name Author Name…arrow_forward/////////////////////////////////////////////////////////////////////// CLASS PROVIDED: sequence (a container class for a list of items,// where each list may have a designated item called// the current item)//// TYPEDEFS and MEMBER functions for the sequence class:// typedef ____ value_type// sequence::value_type is the data type of the items in the sequence.// It may be any of the C++ built-in types (int, char, etc.), or a// class with a default constructor, an assignment operator, and a// copy constructor.// typedef ____ size_type// sequence::size_type is the data type of any variable that keeps// track of how many items are in a sequence.// static const size_type CAPACITY = _____// sequence::CAPACITY is the maximum number of items that a// sequence can hold.//// CONSTRUCTOR for the sequence class:// sequence()// Pre: (none)// Post: The sequence has been initialized as an empty sequence.////…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
Introduction to Classes and Objects - Part 1 (Data Structures & Algorithms #3); Author: CS Dojo;https://www.youtube.com/watch?v=8yjkWGRlUmY;License: Standard YouTube License, CC-BY