If we open a file as follows:```pythonxfile = open('mbox.txt')```What statement would we use to read the file one line at a time?a. `while ():`b. `while ( getline(xfile, line) ):`c. `for line in xfile:`d. `READ (xfile, *, END=10) line:`

Given: xfile = open('mbox.txt') #this line creates and returns a file object which can used read…

Answered: If we open a file as follows: xfile =…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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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.
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Python programs are saved as ordinary text files (with the extension.py). This means we can read them and process them just like any other data file. Write a function num_whiles (filename) that reads the Python program file with the given filename and returns a count of the number of while loops found in that program. More precisely, your function should return the number of lines starting with (possibly) some white space followed by the string 'while , i.e. the word while with a space at the end. This is usually, but not necessarily, the same as the number of while loops in the program, but we won't worry about that here. In the first example below, the file testo.py contains the following program: i = 0 while i 0: \n") # ...and one indented while while_file.write(" while < 1: \n") while_file.close() # Now use it for testing print (num_whiles("while_file.py"))
QI: Write a program to calculate the average of four integer score, and find the grade for 7 students. The program should do the following: 1. Read the first, second name and the four score of the 7 student from the file (E:lexam.txt), 2. Calculate the average and find the grade of the average by using the if and if else. 3. Save the first, second name, average and the grade for each student in file (E:grade.txt). (10 columns for the first and second name. 4 columns, precision 2, for the average and grade)
-all-occurrences-of-a-substring-in-a-string/.
Q1: Write a python code to read data from a file "file1.txt" and then write the data to another "file "file2.txt 4:30
Q2: Write a c++ program that reads a text file that has a poem written in it. (Write down the poem yourself in a text file manually). Your program should display that poem and count a total number of lines in the file.
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Summary In this lab, you write a while loop that uses a sentinel value to control a loop in a Python program. You also write the statements that make up the body of the loop. Each theater patron enters a value from 0 to 4 indicating the number of stars that the patron awards to the Guide’s featured movie of the week. The program executes continuously until the theater manager enters a negative number to quit. Instructions Make sure the file MovieGuide.py is selected and open. Write thewhile loop using a sentinel value to control the loop, and also write the statements that make up the body of the loop. Execute the program by clicking the Run button at the bottom of the screen. Input the following as star ratings: 0, 3, 4, 4, 1, 1, 2, -1 must be written with this code: """ MovieGuide.py This program allows each theater patron to enter a value from 0 to 4 indicating the number of stars that the patron awards to the Guide's featured movie of the week. The program executes…
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If we open a file as follows: xfile = open('mbox.txt') What statement would we use to read the file one line at a time? a. while (): b. while (getline (xfile,line)): C. for line in xfile: d. READ (xfile, *, END=10) line: