read the lines of the file until it reaches the end, print out the last line in the file, report the number of lines contained in the file,
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The function print_last_line in python takes one parameter, fname, the name of a text file. The function should open the file for reading, read the lines of the file until it reaches the end, print out the last line in the file, report the number of lines contained in the file, and close the file.
Hint: Use a for loop to iterate over the lines and accumulate the count.
For example:
Test | Result |
---|---|
print_last_line("wordlist1.txt") | maudlin The file has 5 lines. |
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- The python function file_first_chars takes one parameter, fname, the name of a text file, and returns a string made up of the first character from each line in the file. You may assume there are no blank lines in the file. Hint: Use a for loop to iterate over the lines of the file and accumulate the string of first characters.The function file_first_chars in python takes one parameter, fname, the name of a text file, and returns a string made up of the first character from each line in the file. You may assume there are no blank lines in the file. Hint: Use a for loop to iterate over the lines of the file and accumulate the string of first characters. NOTE: Return the function, don't print For example: Test Result print(file_first_chars("wordlist1.txt")) hsaemA. Reading Data From FileCreate a file named data.dat and enter the following numeric data:10 15 11-5 7 1532 -13 1211 17 943 18 -4The file should contain three integers in each line, the integers separated by a space.There should be 5 lines of numbers in the file.2Now, write a program file called Lab9A.cpp. In this file, open the file data.dat forreading and average.dat for writing.In a loop, using three integer variables (NOT ARRAY), read the numbers to computethe average for each line. Then, write the computed average to the average.dat file.The averages must be saved in floating point format and there must be 2 numbersafter the decimal point.You MAY NOT assume there are 15 numbers in the file i.e. your program should begeneric. please use C++
- Implement function duplicate() that takes as input a string and the name of a file in the current directory and returns True if the file contains duplicate words and False otherwise. Hints: remember to save the function and the text file in the same directory. def duplicate(filename): 'Put in docstring’ # get file content infile = ________________# ______________ content = ______________# ______________ infile__________________# ______________ # replace punctuation with blank spaces and obtain list of words table = ________________________ # _______________ words = _______________________ # _______________ # for every word, check if it occurs more than once; if so, return True for word in words: if ______________________ # _____________ _________________# _____________ # no word occurred more than once, so return False ______________ Result of running the function. >>> duplicate('Duplicates.txt') True >>> duplicate('NoDuplicate.txt') FalseWrite a program that reads by asking the user the name of the file. After opening it, read it into the structure of array. The input file is in the format: firstName lastName age result (Contents of the input file) The Temp 0 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Edward Newman 61 3 1 2 2 2 3 5 3 5 3 5 1 3 1 4 3 5 2 5 3 5 1 3 1 5 1 5 3 1 1 3 1 3 1 3 3 5 2 1 2 3 5 1 1 3 3 5 3 1 5 The program reads the result into the structure called TheResult. The constants and the structure to be used is given below: const int EXTROVERSION = 0; const int AGREEABLENESS = 1; const int CONSCIENTIOUSNESS = 2; const int NEUROTICISM = 3; const int OPEN_TO_EXPERIENCE = 4; const int NUM_QUESTIONS = 50; const int NUM_RESULT = 5; const int MAX_RESULT = 5; struct TheResult { string firstName; string lastName; int age; int answers[NUM_QUESTIONS]; // result double normalizedResult[NUM_RESULT]; }; The name of the input file is…CS 401 Assignment ’POLISH’ PEASANT MULTIPLICATION Write a program using a language of your choice, that multiply two integers using the “Polish Peasant Multiplication” method. OBJECTIVE: To compute the product of two integers using the ’polish peasant’ method of multiplication INPUT: A data file containing 5 pairs of positive integers to be multiplied. One pair per line, separated by a single space. USE A FOR LOOP TO CONTROL THE READING OF THE INPUT FILE OUTPUT: A data file containing the input numbers along with their product in a format of your choosing. TEST CASES: Your program should yield the correct product for the following values. Hand in the complete program input and output files for all cases. 75 40 15 999 1 1 0 0 Any two digits of your choosing RESTRICTIONS: Obviously you may NOT use the normal multiplication operator. COMMENTS ARE A MUST!!! The ’Polish Peasant’ multiplication method: The ’polish-peasant’ multiplication algorithm to multiply any two values relies on…
- Write a function count_character(filename, character) that takes in a filename and a character, both as strings, and returns the total number of times the given character occurs in the file. Examples: Contents of hello.txt:HelloHELLOHelloHELLO count_character('hello.txt', 'L') returns 4count_character('hello.txt', 'H') returns 4count_character('hello.txt', 'e') returns 2 Requirements: Please use Python Programming only Show screenshot of your work.(5) Write a function called copy_even_lines() that takes two strings (filenames) as input parameters and copies every other line from the first file into the second. That is, counting from 0, it copies the 0th line, the 2nd line, the 4th line, etc. from the first file to the second file. You may assume that both files exist. (6) Write a python program that asks the user for two filenames and calls your function copy_even_lines() from (5) using those two filenames. If one or more files do not exist, your program must handle the exception by repeating the prompts until valid filenames are entered.Assume that infile has been properly defined to read data from a file and that a file of integers has been properly opened. If you don't know how many integers are in the file, which loop(s) would be appropriate to read in all the values from the file? Variable n has been defined as an int. 1. while(! infile.eof()) 2. for(int x = 0; x < 1000000; x++) 3. while(infile >> n) Answers: A. Both 2 and 3 B. 1, 2, and 3 C. Both 1 and 2 D. Both 1 and 3 E. 3 only
- Please do this in Python: Write a program that allows the user to navigate lines of text in a file. The program should prompt the user for a filename, read the file and input the lines of text into a list. The program then enters a loop in which it prints the number of lines in the file and prompts the user for a line number. Actual line number range from 1 to the number of lines in the file. If the input is 0, the program quits. Otherwise, the program prints the text associated with that number.Write a program in python IDLE that allows the user to navigate the lines of text in a file. The program should prompt the user for a filename and input the lines of text into a list. The program then enters a loop in which it prints the number of lines in the file and prompts the user for a line number. Actual line numbers range from 1 to the number of lines in the file. If the input is 0, the program quits. Otherwise, the program prints the line associated with that number.This is Python Program 5: Improve the file copy program from Lab 9 so that it will make sure the user enters a file that exists. If a file doesn’t exist, the open function will raise the FileNotFoundError. You do not need to check if the destination exists since a file doesn’t need to exist to write it. Instead of copying the content of the source as exact, it only copies non-empty lines and it also prepend each line with a line number. A line is empty if the length of the line stripped of white space from both end is 0. The code segment below shows how to strip white space and getting the length of the string. If the length of the line is zero, the line is a blank line. line1 = " " line2 = " aa " print(len(line1.strip())) # 0 print(len(line2.strip())) # 2 In the sample run, “add.py” is the source file and “add-copy.py” is the destination file. Note that “add-copy.py” contains only non-blank lines from “add.py” and each line in “add-copy.py” is labelled with a line number. Sample run:…