In Java, the File class is used to represent the data in a directory entry. Write a program that uses the File class to print all the attributes of a file
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In Java, the File class is used to represent the data in a directory entry. Write a program that uses the File class to print all the attributes of a file.
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- 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%,…PLEASE COMMENT CODE In a python program, create a new file and call it “ tracking”. Write to it four lines each contains information about an order like this: 1-00654-021 Dell charger Toronto-WEST 99-49-ZAD011-76540-022 ASUS battery Milton-EAST 34-56-CBH561-09239-026 HP HD Scarborough-NORTH 12-98-AZC451-12349-029 Mac FD North York-LAWRENCE 34-49-ZWL01Add the file two more lines: 1-34567-055 Lenovo SSD Milton-ON 34-09-MT04 1-90432-091 Lenovo battery Oakville-ON 78-KL98 Define a function that searches for a brand (e.g. Dell, ASUS, etc.). Test the function in your program.IN JAVA Arrange the data for your chart in a text file as follows: The first line of the file is the title for the chart The second line of the file is the units used in the chart The rest of the file contains data values for the chart alternating with the label to print with the value on the preceding line. The program must be able to produce a chart from any data file arranged as described above. The name of the data file and the output file are provided on the command line. The program must check that there are enough command line arguments and stop with a suitable message if not. The program saves the chart to the output file (2nd command line argument); it may also display the chart to the terminal, but it is not required to. In addition to the above, accept two additional command line arguments: The maximum width for the chart (just the bar itself, not including the labels) The symbol to use for the bars
- In Java, every source file must have the same name as the class declared in the file. Select one: True FalseJAVA PPROGRAM Write a program that prompts the user to enter a file name, then opens the file in text mode and reads names. The file contains one name on each line. The program then compares each name with the name that is at the end of the file in a symmetrical position. For example if the file contains 10 names, the name #1 is compared with name #10, name #2 is compared with name #9, and so on. If you find matches you should print the name and the line numbers where the match was found. While entering the file name, the program should allow the user to type quit to exit the program. If the file with a given name does not exist, then display a message and allow the user to re-enter the file name. The file may contain up to 100 names. You can use an array or ArrayList object of your choosing, however you can only have one array or ArrayList. Input validation: a) If the file does not exist, then you should display a message "File 'somefile.txt' is not found." and allow the…IN C++ VISUAL STUDIO Create two classes one to read data from file, and the other to write data into a file. The data can be about employees having information about employee name, id and designation. You must create a class for employee. There is a total of 3 classes in your program. In the second class, which is about file writing, you have to write data about 10 employees in file. You can get data from user. In reading class, you have to read information about a specific employee whose id is given by user. Finally write a function to show data about employees whose designation is “manager”.
- PLZ help with the following IN JAVA There are two common classes used for reading from a text file. They are: PrintWriter and BufferedReader FileInputStream and Scanner BufferedReader and Scanner None of the aboveUsing Java: A hotel salesperson enters sales in a text file. Each line contains the following, separated by semicolons: the name of the client the service sold ( Dinner, Conference, Lodging) the amount of the sale the date of the event. Write a program that reads such a file and displays the total amount of each service category. Display an error if the file does not exist or the format is incorrect.Write a C# program FileComparison that compares two files. Two files have been provided for you, Quote.txt and Quote.docx, both containing movie quotes and are located in the /root/sandbox/ directory Next 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 file’s size, you can create a System.IO.FileInfo 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; Your program's output should look like the following: The size of the Word file is FILE_SIZE and the size of the Notepad file is FILE_SIZE The Notepad file is x% of the size of the Word file
- InputOutput 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.*.exampleOne This program reads data from a physical file, create a reference to the file, perform a computation, display the result, close the file. package chario; import java.util.Scanner; import java.io.*; //public class Chario { // public static void main(String[] args) throws IOException { File file1 = new File("fileOne.txt"); //Create a reference to the physical file /* Use Notepad to create a text file named fileOne.txt which must be in the same directory that src is in To find src, open your project in NetBeans and hover its name, which is in the top left just below the Projects menu; this will display the path to your project My project path is, yours will be different I:\\Ajava\161\WPPractice\IO\charstream\chario My fileOne.txt is located in chario */ Scanner getit = new Scanner( file1 ); // connect a Scanner to the file int num, square; num = getit.nextInt(); square = num * num ; System.out.println("The square of " + num + " is " + square); getit.close(); //Close the stream…Java: OverviewIn this task, you will read data from a text file, process the loaded data, and then save the processed data to a new text file. The purpose is to teach you to read from and save to text files.TaskStatistics department in Germany has made forecasts of what Germany's population will look like by 2050, distributed by age and gender. The text file (population2050.txt) contains statistics on the estimated population for the year 2050. The figure below shows the first 16 lines of the file. First comes a line that shows which age group the information applies to. This is followed by a row with information on the number of men in that age group, followed by a row with the number of women in that age group. In total, the file contains information for the age groups 0 to 105 and the information about each age group extends over three lines as shown. The rows with information about the number of men and women are formatted using one or more spaces. Your task is to write a java…