Answered: A program that will read line of a…

A program that will read line of a stream of integers from a FILE. Reverse each number and compute the sum of all numbers read in one line. Reverse the sum and print back to the FILE. INPUT FILE

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

I have a "user.json" file that looks like this { "something@somewhere.com": "maybe", "john@beatles.uk": "lennonj!", "paul@beatles.uk": "mccartney", "mick@rollingstones.uk": "jaggerm!" } using java script i have to parse this file and then check this email and file conbinations against user input This is the code i m using to parse the file. function lookUpCredentials(filePath, cb) { fs.readFile(filePath, (err, fileData) => { if (err) { return cb && cb(err); } try { const object = JSON.parse(fileData); return cb && cb(null, object); } catch (err) { return cb && cb(err); } }); } lookUpCredentials("./user.json", (err, data) => { if (err) { console.log(err); return; } credentials = data; }); and this is the code i m using to get input from the user app.post('/login', (req, res) => { let username =…
Write an automated censor program that reads in the text from a file andcreates a new file where all of the four-letter words have been replaced by11 **** 11• You can ignore punctuation, and you may assume that no wordsin the file are split across multiple lines.
Write a program that reads student data from a file, compute their GPA and writes the results to a different file. 1. The user should have the option to either enter their text file that contains the student grades or use the provided text file that contains theinformation. The data in "indata.txt" should look similar to this, Lara_Croft75 70 91 69 89Chris_Redfield68 88 79 85 94Johnny_Cochran69 98 95 77 80Wanda_Maximoff84 86 98 95 92Luke_Skywalker74 96 80 98 97William_Kurt89 52 99 81 58Samuel_Jackson50 96 50 64 95END_OF_FILE This is supposed to be in python. This is what I have so far. I have no experience I apologise. I am trying to finish the GPA calculating program currently but am having trouble finishing it. grade = input("enter grades")points = 0 if grade is 90-99:total_points = 4.0if grade is 80-89:total_points = 3.0if grade is 70-79:total_points = 2.0if grade is 60-69:total_points = 1.0if grade is 50-59:total_points = 0.0gpa = total_points/len(grade)print(gpa,"is gpa")
Write a program that findsall prime numbers up to 10,000,000,000. There are approximately455,052,511 such prime numbers. Your program should meet the followingrequirements:■■ Your program should store the prime numbers in a binary data file, namedPrimeNumbers.dat. When a new prime number is found, the number isappended to the file.■■ To find whether a new number is prime, your program should load the primenumbers from the file to an array of the long type of size 10000. If nonumber in the array is a divisor for the new number, continue to read thenext 10000 prime numbers from the data file, until a divisor is found or allnumbers in the file are read. If no divisor is found, the new number is prime.■■ Since this program takes a long time to finish, you should run it as a batchjob from a UNIX machine. If the machine is shut down and rebooted, yourprogram should resume by using the prime numbers stored in the binary datafile rather than start over from scratch.
1. Create a program that writes an Integer object to a stream and reads this object from the stream. 2. Simple Encryption. Read from a file specified by the user and encrypt the content of the file using a simple shifting technique. Also, ask the user to input the shift size. Output the encrypted message to another file whose filename is also provided by the user. For example, Shift size: 1 Message read from the file: Hello Encrypted message: Ifmmp
from Big Java 6th. Edition. Ch.11 P11.12: the capacitor is represented by the equation v(t) = B(1 - e-t/(RC)) Suppose the parameters of the electric circuit are B = 12 volts, R = 500 Ω, and C = 0.25 μF. Consequently v(t) = 12(1 – e-0.008t) where t has units of μs. Read a file params.txt containing the values for B, R, C, and the starting and ending values for t. Write a file rc.txt of values for the time t and the corresponding capacitor voltage v(t), where t goes from the given starting value to the given ending value in 100 steps. In our example, if t goes from 0 to 1000 μs, the twelfth entry in the output file would be: 110.00 7.02261 Make sure that your program catches the FileNotFoundException that can occur if your input file params.txt cannot be found. Your program should catch this exception, and then prompt the user for a file name again until a valid file is entered. I hbelieve I have everything needed, but I cannot figure out how to write in the…
Write a program that uses an initially empty file to store a sorted list of integers entered by the user. Theintegers are stored in binary form. Each time the program is run, it opens the file and outputs the list of storedintegers onto the screen. The program then asks the user to enter a new integer X. The program then looks at theinteger at the end of the file. If that integer is less than or equal to X, the program stores X at the end of the fileand closes the file. Otherwise, the program starts at the end of the file and works toward the beginning, movingeach value in the file that is greater than X up by one until it reaches the position in the file where X should bestored. The program then writes X at that position and closes the file.
Suppose a file “ABC.txt” contains three integers separated by commas. Write a program that use the existing file, read the integers and display them in reverse order separated by spaces. Secondly, get string input from user and append an existing file. Finally, count the number of words in a file write code in java
You would use a stream's clear method to: Multiple answers: Multiple answers are accepted for this question a empty the output buffer b reset flags after a failed translation/extraction c clear the screen d clean up after a bad file open attempt e forget an end-of-file encounter before seeking back to the beginning of the stream
What would be the printout of the following code if the same file.txt was used as above? int main() { fstream file("file.txt", ios::in); string line; while (!file.eof()) { getline(file, line); cout << line << endl; } file.close(); return 0;} Group of answer choices I have a dream. I Ihaveadream. I have a dream.I have a dream.
Modify task5.c so it will print out a content of a file backward. You will need to use lseek() to accomplish this task. Modify this program to print the file backward.*/ #include <stdio.h>#include <unistd.h>#include <fcntl.h> int main(int argc, char *argv[]){ char *filename = argv[1]; int input = open(filename, O_RDONLY); char c; while(1){ int r = read(input,&c,1); if(r==0) break; write(1,&c, 1); } close(input); return 0;}
Write a complete program that uses an ifstream object to read integers from a file called numbers.txt, and an ofstream to write into a file called doubles.txtYour program should have a loop that reads five integers from the input file, then writes the doouble of each (x2) into the input file. Write each value in a separate line.Make sure to close both files before your program terminates.