What is wrong with the following code snippet that is supposed to print the contents of the file twice? infile = open ("input.txt", "r") for sentence in infile : print (sentence) for sentence in infile : print (sentence) Select one: O' Arun-time error occurs because the file does not exist O Nothing, the code prints the contents two times O Python cannot iterate over the file twice without closing and reopening the file The program cannot use the variable sentence twice

What is wrong with the following code snippet that is supposed to print the contents of the file twice? infile = open ("input.txt", "r") for sentence in infile : print (sentence) for sentence in infile : print (sentence) Select one: O' Arun-time error occurs because the file does not exist O Nothing, the code prints the contents two times O Python cannot iterate over the file twice without closing and reopening the file The program cannot use the variable sentence twice

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

1
C++ Problem!! Sort A List Of Integers Given a file of 100,000 unsorted integers, write a program that first prompt user to enter file name and reads those integers into an array and sorts the integers in the array. The program should then prompt the user for an index, and then display the integer at that index. For example, if the array contains ten integers and the contents are 79 4 42 51 12 22 33 17 91 10 after sorting, the integer at index 6 is 42 Download the "List of 100,000 Unsorted Integers" from below link and sort that list, then enter the value at index 10000 (ten thousand) for a screenshot. https://1drv.ms/t/s!AuFS4mkcuYyBjHZ_SIudb93bq2uy?e=CsyvZj
Please use Replit to complete in C programming language. PLEASE FOLLOW guidelines CLOSELY AND SHOW OUTPUTS
Problem description. In C++ In Betjemanian University, everyone has to enter his/her name on a computer when entering or leaving the library. The names are stored in a file on that computer. Assume that everyone adheres to this rule. Given the file, find out how many people are there in the library. There will not be spaces in names. Different people have different names. Input 1 1 Shubham Output 0
Problem description. In C++ In Betjemanian University, everyone has to enter his/her name on a computer when entering or leaving the library. The names are stored in a file on that computer. Assume that everyone adheres to this rule. Given the file, find out how many people are there in the library. There will not be spaces in names. Different people have different names. Input 1 1 Shubham Output 0
Problem description. In C++ In Betjemanian University, everyone has to enter his/her name on a computer when entering or leaving the library. The names are stored in a file on that computer. Assume that everyone adheres to this rule. Given the file, find out how many people are there in the library. There will not be spaces in names. Different people have different names. Input 1 1 Shubham Output 0
write you c++ code to read a file contains simple +/- maths equations and change it to plus and minus input file example: A+B, 10+20,30-50,8=100output file example A plus B , 10 Plus 20 , 30 minus 50 , 8 plus 100
I have problem with python file . can you check it. do (# writer requests for critical sectionwait(wrt) # performs the write # leaves the critical sectionsignal(wrt): ) while(true):Reader process: #Reader requests the entry to critical section.If allowed:#it increments the count of number of readers inside the critical section. If this reader is the first reader entering, it locks the wrt semaphore to restrict the entry of writers if any reader is inside.#It then, signals mutex as any other reader is allowed to enter while others are already reading.#After performing reading, it exits the critical section. When exiting, it checks if no more reader is inside, it signals the semaphore “wrt” as now, writer can enter the critical section.If not allowed, it keeps on waiting.do {# Reader wants to enter the critical sectionwait(mutex): # The number of readers has now increased by 1readcnt++; # there is atleast one reader in the critical section# this ensure no writer can enter if there is…
PYTHON QUESTION #6 Two programs are required. In each program: Start with a comment that includes your name and course number. Include pseudocode that describes all steps required to solve the problem. Employ variable names that describe the values they store and adhere to Python naming conventions. Include additional comments as needed to annotate your code. Use correct spelling and grammar. 5a: Write a program named filemaker.py that will be used to store the first name and age of some friends in a text file named friends.txt. The program must use a while loop that prompts the user to enter the first name and age of each friend. Each of these entries should be written to its own line in the text file (2 lines of data per friend). The while loop should repeat until the user presses Enter (Return on a Mac) for the name. Then, the file should be closed and a message should be displayed. See Sample Output.SAMPLE OUTPUT Enter first name of friend or Enter to quit DennyEnter age…
In standard C programming please
CISP 1010, Lab 3, Arrays and C-Strings Introduction This application creates Mad Lib™ haikus based upon user input. Detailed Information The application reads three-line haikus into a two-dimensional array of characters (an array of C-strings, not C++ string objects) from an input file called haikus.dat. Do not ask the user for this file name. Just open it and read its contents into a two-dimensional array. A sample input file with two haikus is shown below. Flowers sit in * Shades of the * tree near * in sunset When begins the * And the * Crocus blooms * any thing The asterisk will actually be in the file. They indicate where words that the user enters go in the haiku. The asterisk on the first line will be replaces by a one syllable noun and on the second line will be replaced by a two syllable adjective. These two askterisks will never be the first character of the line. The asterisk on the third line will always be the first character on the line and will be replaced by a gerund (a…