QI: Suppose that the file (rectangle.txt) shown in the figure was stored in the default path, thisfile contain the length and width of unknown number of rectangles. Write a program to openthe file for reading then calculate the area of each rectangle and store it in a new created file,rectangi tit-NotepadFie Ede Femat View HelpВy C++Q2: Suppose that the file (employee.txt) shown in the figure was stored in the default path,the data stored in this file is employee's name (string), his age (integer), and his salary(double); this data is stored for unknown number of employee. Write a program that uses afunction which receives a file stream object of the file (employee.txt) and then it ereatesanother file to store the names of the employees whose ages are over 30 years.employee bt-NotepadFie Edt Fomat Vew HelpAhmed 33Alihasan 40moharmed1.5e+061.6e+06371.7e+86431.Be-06kamal551.9e+06bassam 25hussam 22100%Windows (CRLF)UTF-

testShape.txt ifstream myfile; myfile.open("testShapes.txt"); if (myfile.is_open()) { while…

QI: Suppose that the file (rectangle.txt) shown in the figure was stored in the default path, this file contain the length and width of unknown number of rectangles. Write a program to open the file for reading then calculate the area of each rectangle and store it in a new created file, rectangi ht- Notepad Fle Edt Fomat View Help 3 By 3.

QI: Suppose that the file (rectangle.txt) shown in the figure was stored in the default path, this file contain the length and width of unknown number of rectangles. Write a program to open the file for reading then calculate the area of each rectangle and store it in a new created file, rectangi ht- Notepad Fle Edt Fomat View Help 3 By 3.

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

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Chapter 4. PC #6. File Letter Counter (page 264) Write a program that asks the user to enter the name of a file, and then asks the user to enter a character. The program should count and display the number of times that the specified character appears in the file. Class name: FileLetterCounter Hints: Hint 1. To read a single character from the keyboard, you need to read a full line and then take the first character in position 0. Hint 2. To count the occurrences of a given characters in a file you need to read the file line-by-line using a while loop, then for each line check all characters in all positions and increment the character counter for each occurrence. This will require to have a for-loop nested inside the while-loop.
Write the 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 Note: you will not be able to see the Quote.docx file. 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 using System; using static System.Console; using System.IO; class FileComparison { static void Main() { // Getting…
Create a file called contacts.py, implement a program that prompts the user to select a choice between these 5 options. Add contact (1), Delete Contact (2) Save Contact(3), show all contact (4), exit program (5). Contact info should be saved in a separate read/write file. If user inputs number (1) on the keyboard, then prompt them to input the name and number of the contact. If user selects (2), delete all contacts or show an error if there are no contacts saved to file. If user inputs (3) save the contact and loop the choice of the 5 options until user inputs (5) to exit. If user inputs (4) print out the saved contacts to the screen neatly, Name, Number(newline). if user inputs 5 then exit the program. If the user inputs a number not shown then give an error message and ask them to input a valid number. Please code in python, preferably using case statements to complete
A student wants to write into a file called myfile, without deleting its existing content. Which one of the following functions should he or she use? f = open('myfile', 'r') f = open('myfile', 'w+b') f = open('myfile', '+') f = open('myfile', 'a')
wordCountDistinct.py: Write a program that reads words from a file (filename given as a command-line argument) and prints the number of distinct words. Words that differ only in case should be considered to be equivalent.For example, using the input: If there's a problem yo I'll solve itCheck out the hook while my DJ revolves itIce ice baby The program should print 18.
1. Write a program that asks the user for the name of a file. The program should display only the 3 lines of the file's contents. If the file contains less than 3 lines, it should display the file's entire contents. Use the file: lorem_ipsum.txt to test your program. Comment your source code and describe your code to someone who may be viewing it for the first time. PLACE SCREENSHOTS OF THE PYTHON CODE AND ALL I/O BELOW. Please use Python Programming
True/False 10. The process of associating a file with an object in a program is called "reading" the file.
step 1: Write a python program that will ask the user for their grocery list, one item at a time, and will write it to a file called groceries.txt. The program should create a new file called groceries.txt that will contain all of the user’s groceries when opened. Step 2: Modify the python program that creates a groceries.txt file so that if the user’s favourite fruit is not on the list, the program will append it to the end of groceries.txt file.
1. Create a file that contains 20 integers or download the attached file twenty-integers.txttwenty-integers.txt reads:12 20 13 45 67 90 100 34 56 89 33 44 66 77 88 99 20 69 45 20 Create a program that: 2. Declares a c-style string array that will store a filename. 3. Prompts the user to enter a filename. Store the file name declared in the c-string. 4. Opens the file. Write code to check the file state. If the file fails to open, display a message and exit the program. 5. Declare an array that holds 20 integers. Read the 20 integers from the file into the array. 6. Write a function that accepts the filled array as a parameter and determines the MAXIMUM value in the array. Return the maximum value from the function (the function will be of type int). 7. Print ALL the array values AND print the maximum value in the array using a range-based for loop. Use informational messages. Ensure the output is readable.
2. This involves a .txt file with one thousand rows of random numbers (between 1-1000) Using Python, create a program to perform this task, with 3 methods of doing this: Read the entire contents of file1.txt into memory, then process each row. Read one row of file1.txt at a time and process it. Split file1.txt into 2 parts and read each part into memory separately.
A file named data.txt contains an unknown number of lines, each consisting of a single integer. 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.
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: