Assume you have a file on your disk named floatnumbers.txt containing float numbers. Write a Python code that reads all the numbers in the file and display their average. Your code must handle any IOError (for example, file does not exist) and ValueError (for example, alphanumeric data fo und in the filo Such as letters)

Assume you have a file on your disk named floatnumbers.txt containing float numbers. Write a Python code that reads all the numbers in the file and display their average. Your code must handle any IOError (for example, file does not exist) and ValueError (for example, alphanumeric data fo und in the filo Such as letters)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

>> classicVinyls.cpp For the following program, you will use the text file called “vinyls.txt” attached to this assignment. The file stores information about a collection of classic vinyls. The records in the file are like the ones on the following sample: Led_Zeppelin Led_Zeppelin 1969 1000.00 The_Prettiest_Star David_Bowie 1973 2000.00 Speedway Elvis_Presley 1968 5000.00 Spirit_in_the_Night Bruce_Springsteen 1973 5000.00 … Write a declaration for a structure named vinylRec that is to be used to store the records for the classic collection system. The fields in the record should include a title (string), an artist (string), the yearReleased (int), and an estimatedPrice(double). Create the following…
Make the following modifications for the solution above: name the output/input file "myRandomNumbers.txt" use a loop to output 17 random numbers to the file after creating the file, close it open the file for input and read the contents and then total the numbers in the file determine the average of the numbers in the file determine the highest and lowest numbers in the file DO NOT USE PYTHON BUILTIN FUNCTIONS TO CALCULATE THE AVERAGE OR THE HIGHEST AND LOWEST NUMBERS an expected number of modules/functions would be in the 5-8 range Display your results: the numbers generated on a single horizontal line the calculated total and average the highest and lowest number in the file Be sure to use clear prompts/labeling for input and output.
python please Do not need create the file"summer.txt", just need steps.
*The following needs to be in python For this application, you will need to create a Python application that reads the sales for 12 months from a file and calculates the total yearly sales as well as the average monthly sales. In addition, this program should let the user edit the sales for any month. Jan 14317 Feb 3903 Mar 1073 Apr 3463 May 2429 Jun 4324 Jul 9762 Aug 15578 Sep 2437 Oct 6735 Nov 88 Dec 2497 Step 1 Define a display_title() function and have it use the print() to show the text: [FirstName] [LastName]'s Monthly Sales Replace the placeholders with your own first and last name add a space using the print() Define a display_menu() function and have it Use the print() function several times to show the following text with a space after: COMMAND MENUmonthly - View monthly salesyearly - View yearly summaryedit - Edit sales for a monthexit - Exit program Step 2 Define a main() function Call the display_title() function and the…
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 MODIFY THIS CODE, SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL THE TEST CASES, BECAUSE WHEN I UPLOAD IT TO HYPERGRADE IT DOES NOT PASS THE TEST CASES. IT HAS TO PASS ALL THE TEST CASES. I PROVIDED THE CORRECT OUTPUT AS A SCREENSHOT AS A REFERRENCE. import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.InputMismatchException;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String fileName; do {…
Show the code for a python program that prompts the user to interactively enter eight batting averages, which the program stores in an array. It should then find the minimum and maximum batting averages stored in the array, as well as the average of the eight batting averages. The data file provided for this lab includes the input statement and some variable declarations. Comments are included in the file to help you write the remainder of the program. Instructions Make sure the file BattingAverage.py is selected and open. Write the Python statements as indicated by the comments. Execute the program by clicking the Run button at the bottom of the screen. Enter the following batting averages: .299, .157, .242, .203, .198, .333, .270, .190. The minimum batting average should be .157 and the maximum batting average should be .333. The average should be .2365. # Declare a named constant for array size here. MAX_AVERAGES = 8 # Declare array here. # Write a loop to get batting…
Can i get help with this file read and write string manipulation question(java) java java data1.txt
In PYTHON Write the code that will open and read the data from a file named Numbers.csv and write it to a file named justAsNumbers.csv
In python： The file contain the content in the form pet1，pet2，pet3 Output will return [[‘pet1’, ‘pet2’, ‘pet3’],[‘pet1’, ‘pet2’, ‘pet3’],…] or none if wrong format for example : PET.txt Cat, Dog, Turtle Hamster, Dog, Dog, , Turtle PETS = read_file(‘PET.txt’) len(PETS) Output: 3 PETS[1] Output: [‘Hamster’, ‘Dog’, None] PETS[2] Output:['Dog', None, 'Turtle'] Play.txt Hamster, Fish Crocodile Play = read_file("Play.txt") print (Play) Output : None
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 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.*;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("Please enter the file name: "); while (true) { String fileName = scanner.nextLine(); File file = new File(fileName); if (file.exists() &&…
M Gmail O YouTube A Maps S Translate Create a function named "area" that allows the user to calculate the area of a Rectangle, a Disk or a Triangle, as shown in the following Python Shell screenshot. Write a main code that keeps calling the function upon user's approval. You need to upload your Python file. Write your own code, cheating will result in a zero grade. Choose 1: Rectangle, 2: Disk, 3: Triangle: 1 enter height: 4 enter width: 3 Area = 12 do you want to try again? (y/n): y Choose 1: Rectangle, 2: Disk, 3: Triangle: 2 enter radius: 4 Area = 50.26548245743669 do you want to try again? (y/n): y Choose 1: Rectangle, 2: Disk, 3: Triangle: 3 enter base: 5 enter perpendicular height: 4 Area = 10.0 do you want to try again? (y/n): n >>> Do loft 1-14:06
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 I do not want a goodbye system out in the program and it has to pass all the test cases. Test Case 1 Please enter the file name or type QUIT to exit:\ninput1.txtENTERTotal: 11.800\nAverage: 2.950\n Test Case 2 Please enter the file name or type QUIT to exit:\ninput2.txtENTERTotal: 17.300\nAverage: 3.460\n Test Case 3 Please enter the file name or type QUIT to exit:\ninput3.txtENTERTotal: 1.124\nAverage: 1.124\n Test Case 4 Please enter the file name or type QUIT to exit:\ninput4.txtENTERFile input4.txt is empty.\n Test Case 5 Please enter the file name or type QUIT…