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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- 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.ReadInstructor. The class will: – Create an array of instructor objects – Read the instructors.txt file – Create an Instructor object for each line of input and store the object in the array. – After closing the file, it will print out a line for each instructor in the array. Input file:Mary Smith 1991 50000.00 John Jones 2000 90000.00 Terry Seidel 1992 51000.00 Jessica Terrell 2000 91000.00
- 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 }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…Java Problem The teacher at a school needs help grading an exam with a number of True/False questions. The students’ IDs and test answers are stored in a file. The first entry of the file contains the answer to the test in the form: TTFTFTTTFTFTFFTTFTTF Every other entry in the file is the student’s ID, followed by a blank, followed by the students’ response. For instance, the entry: ABC54102 T FTFTFTTTFTTFTTF TF The student’s ID is ABC54102, answer to question 1 is True, the answer to question 3 is False. Also, the student did not answer question 2 and question 18. The exam has 20 questions. Here is the grading policy: each correct answer is awarded two points, each wrong answer get -1 point, and no answer gets 0 point. Write a program that processes the test data. The output should be the student’s ID, followed by the answers, followed by the test score (total points), followed by the test grade. Assume the following grade scale will be used: 90%-100%, A; 80%-89.99%, B; 70%-79.99%,…
- 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 appendInputOutput Class: write a program that carries out the following tasks: o Create an object of type PrintWriter and that writes into a file with the name greeting.txt. o Print the message "Hello, world!" on the file. o Close the file. o Open the same file again. o Read the message into a string variable (hint: use nextLine() method to read the text). o Print the message on the screen. AddNumbers Class: write a program that asks the user to input four floating-point numbers. Add all correctly specified values and print the sum when the user is done entering data. Use exception handling to detect improper inputs. For example, the user might enter letters instead of numbers. In this case, use the exception handling mechanism to print a proper message. (hint: use InputMismatchException) Don't forget to import java.util.*.Modify the code below to create a "Favorite Video Game List" program that is contained in three files: Game.h Game.cpp Game_List.cpp You will need do to these things as you modify the code and put it into the three files: Create a class called "Game" (instead of "Movie") that contains 3 private variables ("title", "year", and "rating") The "year" is when the game first came out. The "rating" should be from 1 to 5 (5 being the best). Add the appropriate member functions of the class (setters and getters). Continue to use the get_title_upper() function as part of the class, Game, and in the output within the main file, Game_List.cpp. Add the Default Constructor for the class with the member functions of the class. Ignore the Destructor code for now. It's there to show you where it ends up in future code. Don't forget to add the include guard to the .h file Use the scope resolution operator correctly for each file. Don't use the "using namespace std;" for the main…
- Name:- John (Department-1) Note:- Please type this java code and also need an output for this given Java program.Current file: Encyclopedia.h Load default 1 #ifndef ENCYCLOPEDIAH 2 #define ENCYCLOPEDIAH 3 4 #include "Book.h" 6 class Encyclopedia : public Book { // TODO: Declare mutator functions - 7 8 // SetEdition(), SetNumVolumes() 9 10 // TODO: Declare accessor functions - GetEdition(), GetNumVolumes() 11 12 // 13 14 // TODO: Declare a PrintInfo() function that overrides the PrintInfo in Book class 15 16 // 17 18 19 // TODO: Declare private fields: edition, numVolumes 20 21 }; 22 23 #endi fga Class in Python Creating a Class in Python MyRectangleClassPro. Rectangle.py 1 # This program uses the programmer-defined Rectangle class. 2 Summary 3 # Do NOT modify this program. Write your code in Rectangle.py, 4 # then select this file and click "Run Code". In this lab, you create a programmer-defined class and then use it in a Python program. The 5 program should create two Rectangle objects and find their area and perimeter. 6 from Rectangle import Rectangle 7 8 rectanglel = Rectangle(10.0, 5.0) 9 rectangle2 = Rectangle(7.0, 3.0) Instructions 10 1. Open the class file named Rectangle.py 11 print("Perimeter of rectanglel is " + str(rectanglel.calculatePerimeter())) 12 print("Area of rectanglel is " + str(rectanglel.calculateArea())) 13 print("Perimeter of rectangle2 is " + str(rectangle2.calculatePerimeter())) 14 print("Area of rectangle2 is " + str(rectangle2.calculateArea())) 2. In the Rectangle class, create two attributes named length and width . 3. Write a public…
