Answered: To allow a class to be written to a…

Engineering

Computer Science

To allow a class to be written to a file all at once, we implement the______ class.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 18SA

See similar textbooks

Similar questions

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.…
Put 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…
Computer Science In java design 2 classes, one where you design a Car object with 3 features, doors, windows and seats. Include one toString method that returns how much you have for each feature. This is NOT serializable, the file is .txt In the second class, create a client class, where you have an existing file, which already has 2 car objects in it, delete the second line with the car object, so there is only 1 and then write in the file 4 car objects from the Arraylist. DO NOT use colons ":" in your work . Explain all steps of your work and display an output. Don't use buffer reader or file reader. Use Scanner when reading a file, below are the imports you can use, YOU can also use any type of error message import java.io.FileWriter;import java.io.IOException;import java.io.PrintWriter; import java.util.Scanner here is a example of scanner if needed Scanner file = new Scanner( new File("flights.txt" ) );
Write a back–end class called CSVFileLoader and save it in a file called CSVFileLoader.cpp. This class must have the following structure:Private MembersData Type Name Descriptionboolean cFileReadSuccessful This member will indicate if the file-read operation was successful. Private MethodsReturn Type Method Signature Descriptionint determineNumberOfColumns(string fileName) This method must determine the number of columns in the file.Insert a debug instruction that will display the number of columns as the method exits.void splitData(string line, TUTCell data[]) This method must split the line into separate elements and store each element in the data[] array.Insert a debug instruction that will display the data content of each element as it is inserted into data[] array.Public MethodsReturn Type Method Signature DescriptionTUTTable loadFile(string fileName, string subjectCode) This method must load the data of the file into a table object. Only students with the same subject code as…
How to code this assignment JSON objects. Hint: Work on the methods in the order they are found in the documentation below. def read_last_line(file_path: str)->str: """ Reads the last line of the file at the specified file path. The function returns the last line of the file as a string, if the file is empty it will return an empty string (""). :param file_path: A path to a file :return: The last line of the file """ def read(file_path: str)->str: """ Reads the entire file at the specified file path. The function returns all the text in the file as a string, if the file is empty it will return an empty string (""). :param file_path: A path to a file :return: All the text in the file """ def write(file_path:str, text:str=''): """ Clears the file at the specified file path then writes the specified line to the file. If the function is invoked without a line parameter or the line variable is None nothing is written to…
Exception handling and File I/O coding intellj Exercise 3. File I/O Please create a file and add the following line: 1,5,7,9,13,58,70 Exercise 4, Assuming you have a file on your laptop, and it has the following: John,23 Please create a Person object from your main method by reading the file. You have to create Person class (String name, int age) Please read the file and show the sum of all the numbers.
Attached Files: File Items.txt (119 B) Imagine we were creating a Textbased Adventure program and our Rooms in the assignment above could hold Items. We are not writing the complete game, but lets write a program that will build the Item.txt file. Create a new project. Add a class called Item that stores information about an item that can be placed in a room. An item has a name, a description and the room number in which the item is initially is stored. LAMP, a brightly shining lamp, 3 is an example of data that an Item might contain. Using the UML model below, create the private data members and methods for constructing an item. Create an ItemFileWriter class with a static method to write the items from the given ArrayList to a text file.. The items text file will hold the item name, item description and the initial room that the item is to be loaded into, on seperate lines followed by a blank line. An example of the file that is to be constructed is attached. Construct a…
Python3 code: Create a simple text file called mycandy The first line of the file will be Candy Name, Candy Calories, Total Fat Grams Next, add five lines to the file by hand using your favorite five candy bars information. Each line's data will be separated by commas. Create a class called Candy which keeps track of the three pieces of information Read in the file line by line and create a Candy class instance for each candy bar you have, and add that new instance to a list. Once you have the list created, loop through the list and print the candy bar info out to the console Add a line of code to append one more candy bar’s information to your mycandy file. Show what your new text file looks like after the append
FilelO 05: Averages from a File Write a FileI005 class with a method named calculateAverage() that takes a filename (as a String). Assume that the file only contains numerical values. Have the method calculate the average of all of the values. Return the average as a Double. If an exception is thrown, display an informative message and return e.0. Example FileI005 driver String filename Double val = new FileI005 (); "numbers0.txt"; driver.calculateAverage ( filename ); // returns 58.3529411764706 filename = "numbers1.txt"; driver.calculateAverage( filename ); // returns 62.699999999999996 %3D val = "numbers2.txt"; driver.calculateAverage( filename ); // returns 56.828571428571436 filename val !!
Create a class named shapes, having two functions, getdim() and setdim() alongsideconstructor. Create functions named writing (to write the contents of an object into file),reading (to read from a file and display) and if it encounters any int occurrence, then itthrows an exception to its handler and display errors. Exercise this in main and write andread from file.
file operator code 1 // The FileOperator class that includes methods for file input and output 2 // Maham Hameed 3 import java.io.*; 4 public class FileOperator 5 { 6 // instance variables 7 private File m_file; 8 9 // constructor 10 // Do not make any changes to this method! 11 public FileOperator() 12 { 13 String fileName = "employeeData.txt"; 14 m_file = new File(fileName); 15 } 16 17 // This method writes an array of Employees into a physical file. 18 // Each line is in this format: "S-Optimus Prime-Computer Science-$1200" 19 // "S" represents StudentWorker ("F" represents Faculty) 20 public void writeFile(Employee[] employees) 21 { 22 // TODO: implement this method 23 } 24 }
Please provide me java code for below problem: Assignment Guidelines: Text messaging is a popular means of communication. Many abbreviations are in common use but are not appropriate for formal communication. Suppose the abbreviations are stored, one to a line, in a text file named abbreviations.txt. For example, the file might contains these lines: lol :) free iirc 4 u ttfn Write a class AbreviationMarker that will read a message from another text file and surround each occurrence of an abbreviation(ignoring case) with <> brackets. Write the marked message to a new text file. For example, if the message to be scanned is: Ttfn, how are u today? Iirc, this is your first free day. Hope you are having fun! :) the new text file should contain: <Ttfn>, how are <u> today? <Iirc>, this is your first <free> day. Hope you are having fun! <:)> ----jGRASP exec: java AbreviationMarkerDemoWhat is the file to read from?in.txtWhat is the file to write to…