2. Reading Files (40%) Create a class with a method that, given a string representing a file name, returns an integer with the number of characters in the file. For example, if the file has 10 characters, your method must return the number 10.
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- scanner format using java please have the code copypaste Create a program to count the word's length distribution of a text file. The program should read in the file row by row and split the row into words (assuming there is no punctuations). Then the program should count the number of strings of a certain length. For example, given the following file: Mary has a little lamb little lamb little lamb The result should be: Length 1: 1 Length 3: 1 Length 4: 4 Length 6: 3InputOutput 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.*.JAVA 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…
- C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found.Python A Personal Fitness Tracker is a wearable device that tracks your physical activity, calories burned, heart rate, sleeping patterns, and so on. One common physical activity that most ofthese devices track is the number of steps you take each day The steps.txt file contains the number of steps a person has taken each day for a year. There are 365 lines in the file, and each line contains the number of steps taken during a day. Write a program that reads the file, then displays the average number of steps taken for each month Your program should use a function to calculatethe averagenumber of steps. You will need to pass more than one argument to the function.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:…
- C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found. Attached is the first lines of the .txt fileC++ Programming. Associative and unordered associative containers. Associative containers (set, map, multiset, multimap). • When executing a given task, the input values must be read from a text file. Task : Create a program that deletes a set of elements from a single word of a given string type and creates a second set of elements that consist of a single word, and also displays it on the screen.Computer Science c sharp a program that will let you creat new cars, list all previous cars, update the other cars, and delete them. also be able to read from a text file and add to the text file. each car will have the following information VIN,model, make, color , and year. and store the information in a car object.
- File Stream Problem: Implement a Caesar cipher that can encrypt and decrypt text and file. A Caesar cipher is a substitution cipher that shifts the letters in the original message x spaces ascending the alphabet where x is the key. Example if the key for the cipher is 3, and the message is “I will be there.” Then the coded message would be “L zloo eh wkhuh” Program requirements: Create a class call CCipher that has two member functions encrypt and decrypt. The program should be able to encrypt/decrypt a message from a file as well as a keyboard input. The default key should be 3. The user should be able to select between encrypting and decrypting and should be allowed to do so multiple times until s/he decides to end the program. The file format to be encrypted should be a “.txt” and the user should be able to provide the name of the file to be encrypted, after which the file should be deleted. The user should have the option to view…python programing: You are going to create a race class, and inside that class it has a list of entrants to the race. You are going to create the daily schedule of three or so races and populate the races with the jockey/horse entries and then print out the schedule. Create a race class that has The name of the race as a character string, ie “RACE 1” or “RACE 2”, The time of the race A list of entries for that race Create a list of of 3 (or 4) of those race objects(races) for the day For the list of entries for a particular race, make a entrant class (the building block of your entrants list) you should have The horse name The jockey name Now you need to Populate the structure (ie set up three races on the schedule, add 2-3 horses entries to each race. You can hardcode the entries if you want to, rather than getting them from the user, just to save the time of making a menu interface and whatnot. Be able to print the days schedule So example output would be…OBJECT ORIENTED PROGRAMMING LESSON LABORATORY EXERCISE-1 Problem: Write a program that takes position and current salary value from the user and calculate the new salary and shows it on the console according to the following table. Position Manager Salesman Human Resources Technician Headman Example: Enter your position: Manager Enter your current salary: 10000 New salary: 11000 Raise Percentage %10 %20 %15 %25 %23 Write your program using Java and copy your codes to a text file which has your name and surname. Then load it into UZEM under the provided link.