To allow a class to be written to a file all at once, we implement the______ class.
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To allow a class to be written to a file all at once, we implement the______ class.
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- A file contains a list of telephone number in following form. Aman 23456 Raj 567854 ….. ………. Assume 10 such entries. Name contains only one word and name and telephone number are separated by 5 white spaces. -->Write a program that will create the data file containing the list of telephone number given in above form. Use a class object to store each set of data.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…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.
- 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…Requested files: InClass02.java, input.txt Maximum number of files: 6 Create a simple java program that reads all the content in a .txt file, the user will enter the filename to be opened. In this case, the file will contain multiple lines of student details with each line containing a single student detail. Your task is to then create a student class that models the firstname, lastname, year of birth and gender of every student. The student class should further be able to assign every student created with a student number using a class variable[format is 2022000X, X is a number such as 1,2..] and be able to calculate the age of each student. Within the driver class add all the students read from file into an ArrayList and then print the first and last student in the list. You are additionally expected to deal with most common exceptions(See samples below) [HINT: DO NOT PROVIDE A PATH BUT RATHER ONLY OPEN THE FILE WITH RELATIVE PATH/FILENAME] Sample run 1: Enter filename:…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…
- COMPUTER SCIENCE 130 JAVA PROGRAM Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage double_input1.txt double_input2.txt PLEASE FIX AND MODIFY THIS JAVA SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL TEST CASSES PLEASES. RIGHT NOW IT SAYS 0 OUT 3 PASSED. THE PICTURES THAT I PROVIDED PROOF THAT WHEN I UPLOAD IT TO HYPERGRADES IT FAILS TEST CASSES. THANK YOU. import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.InputMismatchException;import java.util.Locale;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String…Language/Type: Related Links: Author: Java file input Scanner Nick Troccoli (on 2017/04/25) Write a method named classPresidents that tallies votes for presidents of two school classes. Somehow the vote tallies for sophomore and junior class presidents got mixed up! Your method should accept as its parameter a Scanner representing a file of vote results. It should output the next sophomore and junior class presidents. The file format looks like the following: Jared s 25 Sophie j 12 Tom j 44 Isaac s 30 Emily s 60 Russ s 23 Madison j 20 The file repeats the pattern name year votes. The year is either "s" for sophomore or "j" for junior. Your program should output the candidate in each presidential race with the most votes, and how many votes they got. Specifically, if this file were named candidates.txt, your method could be called in the following way: Scanner input new Scanner (new File("candidates.txt")); classPresidents (input); The above call should produce the following output:…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…
- 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 !!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 }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.