Describe the mode that each of the following statements causes a file to be opened in. file.open("info.dat", ios::in | ios::out);file.open("info.dat", ios::in | ios::app);file.open("info.dat", ios::in | ios::out | ios::ate);file.open("info.dat", ios::in | ios::out | ios::binary);
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Describe the mode that each of the following statements causes a file to be opened in.
file.open("info.dat", ios::in | ios::out);
file.open("info.dat", ios::in | ios::app);
file.open("info.dat", ios::in | ios::out | ios::ate);
file.open("info.dat", ios::in | ios::out | ios::binary);
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- Create a program named FileComparison that compares two files. First, use a text editor such as Notepad to save your favorite movie quote. Next, copy the file contents, and paste them into a word-processing program such as Word. Then, write the file-comparison application that displays the sizes of the two files as well as the ratio of their sizes to each other. To discover a files size, you can create a System. 10. Filelnfo object using statements such as the following, where FILE_NAME is a string that contains the name of the file, and size has been declared as an integer: FileInfo fileInfo = new FileInfo(FILE_NAME); size = fileInfo.Length;Describe the mode that each of the following statements causes a file to beopened in.fi l e .open("in fo .dat ", io s: :infile.open("info.dat", io s: :infile.open("info.dat", io s: :infile.open("info.dat", io s: :inios: :out);ios::app);ios: :out I ios: :a te );ios::out I ios::binary);Chapter 4. PC #14. Line Numbers (page 265) Write a program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1. Test Case 1 Please enter the file name or type QUIT to exit:\nquitENTER Test Case 2 Please enter the file name or type QUIT to exit:\nbadfilename.txtENTERFile: badfilename.txt does not exist.\nPlease enter the file name again or type QUIT to exit:\nquitENTER Test Case 3 Please enter the file name or type QUIT to exit: \ninput1.txt ENTER1: a\n2: b\n3: c\n4: d\n
- A student launches the Python interpreter from his home directory. His home directory contains another directory called 'mydir', and 'mydir' contains two files called 'foo' and 'bar'. The home directory does not contain any files, only other directories. What will happen when he writes the following code at the Python prompt: >>> import os >>> filenames = os.listdir('mydir') >>> f= open(filenames[0]) ===================================================================================== A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened for writing in text mode. An error will be produced stating that the file to be opened does not exist. An error will be produced stating that filename is not subscriptable. A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened.in this function is f a variable? in what other way can we write this function? why does mode not work in this function? def process_lines(filename, mode): # Actually this is function is used to read the file line by line with open(filename, 'r') as f: # file opened msg = f.read() # read the message return msg # return message def write_lines(lines): # function to write some into message with open('results.txt', 'w') as f: # open the text file f.writelines(lines) # write some line print("Output written to results.txt") # print the output what does os.path do?def check_file_exists(filename): # check weather this file is exist or not to avoid exception from os.path import exists # import library of exist file_exists = exists(filename) # if file exist return file_existsAssume that the output.txt file contains: First Line Given the following snippet of code: File output = new File("output.txt"); try { Files.writeString(output.toPath(), "Second Line", StandardOpenOption.CREATE); Files.writeString(output.toPath(), "Third Line", StandardOpenOption.CREATE, StandardOpenOption.APPEND); } catch(IOException ex) { System.out.println("Error: " + ex.getMessage()); } What would output.txt contain? Second Line Third Line First Line First Line Second Line Third Line Third Line
- Chapter 4. PC #14. Line Numbers (page 265) Write a program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1. I should be easily type input1.txt and easily print out the output. Test Case 1 Please enter the file name or type QUIT to exit:\nquitENTER Test Case 2 Please enter the file name or type QUIT to exit:\nbadfilename.txtENTERFile: badfilename.txt does not exist.\nPlease enter the file name again or type QUIT to exit:\nquitENTER Test Case 3 Please enter the file name or type QUIT to exit: \ninput1.txt ENTER1: a\n2: b\n3: c\n4: d\nUsing Java, Write an interactive console application for an employee management service. The user can enter the following options for the apps 1-List all employees, sorted by Name. 2-Hire a new employee (add to list) 3-show the lowest salary and highest salary and average of the salaries 0-exit - At the beginning of the application, data will be read from a text file. - And at the end of it when user chooses 0, data will be saved to the same file. - The date format needs to be YYYY-MM-DD and The fields needs to be separated by semicolon(;) Example of data in the text file : Alice P.;2012-09-22;Shoes;40 Emma W.;2016-07-07;Furniture;30 Eva;2021-08-08;Pizza;50 EmployeeSchedule class has the following attributes private String name; private String department; private Date dateHired; private double hourSalary; name : between 2-50 characters and not permitted to have ;^?@!~* department : between 2-50 characters and not permitted to have ;^?@!~* dateHired : between 1900 and 2100 salary :…C++: Assume that there is a valid file named cards.txt in the current directory which contains an int. The following is a code snippet which needs to read the int from the file and print it out to the screen. What do you need to replace ????? with in order to do this? ifstream ifs; int x; ????? ifs >> x; cout << x << endl; A) ifs >> x; B) ifs.open("cards.txt"); C) ifs.input(x); D) cin >> x;
- 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.…Write a program that creates the following three files; dataplus.txt dataminus.txt zeros.txt The program should read each line of the data.txt file and perform the following; If the line contains a positive number, that number should be written to the dataplus.txt file If the line contains a negative number, that number should be written to the dataminus.txt file If the line contains the value 0, do not write the value to a file. Instead, keep a count of the number of times 0 is read from the data.txt file After all the lines have been read from the data.txt file, the program should write the count of zeros to the zeros.txt file. The code is below does not work:How can data be written to the end of a text file? A. By setting the mode parameter in the open statement to "w". B. By using the append() method. C. By using the writeAppend() command. D. By setting the mode parameter in the open statement to "a". Lines read from a text file A. are written as they are read. B. are deleted from the file as they are read. C. include trailing line breaks. D. are superfluous. How can a file be opened for writing? A. A file can be opened for writing by using the openWrite() command. B. A file can be opened for writing by using the writeOpen() command. C. A file can be opened for writing by including a mode parameter set to "a" or "w" in the open() command. D. A file can be opened for writing by omitting the mode parameter in the open() command. What happens if you write lines of text to a file without including the line breaks? A. Python automatically adds a line break to each line. B. The file will consist of a single…