Q4. Write an algorithm of a program to read from a file. The user should be able to get the option to input the file name. He is supposed to read first 100 bytes from the file. After the reading is done, the file should be closed. If the file is not available, the program should be closed immediately. You should mention "System call" beside each instruction which are supposed to use a system call function. *

Q4. Write an algorithm of a program to read from a file. The user should be able to get the option to input the file name. He is supposed to read first 100 bytes from the file. After the reading is done, the file should be closed. If the file is not available, the program should be closed immediately. You should mention "System call" beside each instruction which are supposed to use a system call function. *

Name: Q4. Write an algorithm of a program to read from a file. The user sho
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Description: Q4. Write an algorithm of a program to read from a file. The user shouldbe able to get the option to input the file name. He is supposed to readfirst 100 bytes from the file. After the reading is done, the file should beclosed. If the file is not av

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter4: Control Structures I (selection)

Section: Chapter Questions

Problem 15PE: Write a program to implement the algorithm that you designed in Exercise 22 of Chapter 1. (Assume...

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1. Consider the following incomplete C++ program: #include int main() { … } a. Write a statement that includes the header files fstream, string, and iomanip in this program. b. Write statements that declare inFile to be an ifstream variable and outFile to be an ofstream variable. c. The program will read data from the file inData.txt and write output to the file outData.txt. Write statements to open both of these files, associate inFile with inData.txt, and associate outFile with outData.txt. d. Suppose that the file inData.txt contains the following data: Giselle Robinson Accounting 5600 5 30 450 9 75 1.5 The first line contains a person's first name, last name, and the department the person works in. In the second line, the first number represents the monthly gross salary, the bonus (as a percent), and the taxes (as a percent). The third line contains the distance traveled and the traveling time. The fourth line contains the number of coffee cups sold and the cost of each coffee cup. Write statements so that after the program executes, the contents of the file outData.txt are as shown below. If necessary, declare additional variables. Your statements should be general enough so that if the content of the input file changes and the program is run again (without editing and recompiling), it outputs the appropriate results. Name: Giselle Robinson, Department: Accounting Monthly Gross Salary: $5600.00, Monthly Bonus: 5.00, Taxes: 30.000 Paycheck: $4116.00 Distance Traveled 450.00 miles, Traveling Time: 9.00 hours Average Speed: 50.00 miles per hour Number of coffee Cups Sold: 75, Cost: $1.50 per cup Sales Amount = $112.50 e. Write statements that close the input and output files. f. Write a C++ program that tests the statements in parts a through e.
Write a recursive function, displayFiles, that expects a pathname as an argument. The path name can be either the name of a file or the name of a directory. If the pathname refers to a file, its filepath is displayed, followed by its contents, like so: File name: file_path Lorem ipsum dolor sit amet, consectetur adipiscing elit... Otherwise, if the pathname refers to a directory, the function is applied to each name in the directory, like so: Directory name: directory_path File name: file_path1 Lorem ipsum dolor sit amet... File name: file_path2 Lorem ipsum dolor sit amet... ...
Write a recursive function, displayFiles, that expects a pathname as an argument. The path name can be either the name of a file or the name of a directory. If the pathname refers to a file, its filepath is displayed, followed by its contents, like so: File name: file_path Lorem ipsum dolor sit amet, consectetur adipiscing elit... Otherwise, if the pathname refers to a directory, the function is applied to each name in the directory, like so: Directory name: directory_path File name: file_path1 Lorem ipsum dolor sit amet... File name: file_path2 Lorem ipsum dolor sit amet... ... # Put your code here import os #module used to interact with operating system def displayFiles(pathname): #recursive function that takes a pathname as argument if (os.path.isdir(pathname)): #checks if specified path (argument) is an existing directory #for item in os.listdir(pathname): for content in os.listdir(pathname): #gets the list of all files and directories in the directory and…
C Program Task Write a programme called pgmReduce which takes 3 arguments:1. an input file (either ASCII or binary)2. an integer factor n, and3. an output fileand reduces the input file by that factor in each dimension. For example, if the invocation is:pgmReduce inputFile 5 outputFileand inputFile is a 13x17 image, then outputFile should be a 2x3 image in which only thepixels with row and column of 0 modulo 5 in the inputFile exist.
C Programming Task Write a programme called pgmReduce which takes 3 arguments:1. an input file (either ASCII or binary)2. an integer factor n, and3. an output fileand reduces the input file by that factor in each dimension. For example, if the invocation is:pgmReduce inputFile 5 outputFileand inputFile is a 13x17 image, then outputFile should be a 2x3 image in which only thepixels with row and column of 0 modulo 5 in the inputFile exist
In python, rite a recursive function, displayFiles, that expects a pathname as an argument. The path name can be either the name of a file or the name of a directory. If the pathname refers to a file, its filepath is displayed, followed by its contents, like so: File name: file_path Lorem ipsum dolor sit amet, consectetur adipiscing elit... Otherwise, if the pathname refers to a directory, the function is applied to each name in the directory, like so: Directory name: directory_path File name: file_path1 Lorem ipsum dolor sit amet... File name: file_path2 Lorem ipsum dolor sit amet... ... Test this function in a new program.
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:…
Question B. Write a C++ program that reads the marks of a group of students from a text file "grades.txt" and computes the average of all grades. The program must check the file for any opening problems, and then proceeds to do the other tasks. The input file can have 1 or more students. The text file and sample-output are shown as below: O grades - Notepad File Edit Format View Help 60.0 78.6 78.0 98.6 77.7 55.0 73.0 80.7 80.0 85.0 Windows (CF Ln 13, Col 1 100% CAUsers\Imran\Desktop\Lab111\Debug\Lab111.exe Average of 10 students is 77 Press any key to continue... Activa Coto s
Write a C program named toupper.c that reads the contents of a file, and writes to another file after changing all lowercase letters in the input file to uppercase. The name of the input file and the output file are to be passed as command line arguments. Assume there are only ASCII characters in the input file. The length of the input file is not known beforehand. So make sure your program keeps reading bytes until EOF is reached. Use the library function toupper to concert letters into uppercase. Example: The program is run from the command line as follows; C:\>toupper.exe infile.txt outfile.txt Suppose the contents of the input file infile.txt is: AbcdefG The contents of the output file outfile.txt should be: ABCDEFG
Write a Python program to combine each line from the first file with the corresponding line in the second file and then save it in a 3rd file. Consider, both the files have same number of lines. Assume, each line has a newline(\n) at the end. ========================================================= Example:Input from file 1:HelloHiNice Input from file 2:BadWorseWorst Output in 3rd FIle:Hello BadHi WorseNice Worst ========================================================= Hint(1):Use the write() function what will be the answer of this in python programming language
Suppose a library is processing an input file containing the titles of books in order to identify duplicates. Write a program that reads all of the titles from an input file called bookTitles.inp and writes them to an output file called duplicateTitles.out. When complete, the output file should contain all titles that are duplicated in the input file. Note that the duplicate titles should be written once, even though the input file may contain same titles multiple times. If there are not duplicate titles in the input file, the output file should be empty. Create the input file using Notepad or another text editor, with one title per line. Make sure you have a number of duplicates, including some with three or more copies.
Suppose a library is processing an input file containing the titles of books in order to identify duplicates. Write a program that reads all of the titles from an input file called bookTitles.inp and writes them to an output file called duplicateTitles.out. When complete, the output file should contain all titles that are duplicated in the input file. Note that the duplicate titles should be written once, even though the input file may contain same titles multiple times. If there are not duplicate titles in the input file, the output file should be empty. Create the input file using Notepad or another text editor, with one title per line. Make sure you have a number of duplicates, including some with three or more copies. (Programming Language: Java)