Suppose you have just opened the file test.txt and the following variables have been declared. char name[31]; int score; File test.txt consists of the following content: Mary 89 Mike 75 John 84 What statement will read the name and score in a line from the file? fscanf(pFile, "%s %d", name, &score); fscanf(pFile, "%s %d", &name, &score); fscanf(pFile, "%d %d", &n ne, &score); fscanf(pFile, "%d %d", name, &score);

Suppose you have just opened the file test.txt and the following variables have been declared. char name[31]; int score; File test.txt consists of the following content: Mary 89 Mike 75 John 84 What statement will read the name and score in a line from the file? fscanf(pFile, "%s %d", name, &score); fscanf(pFile, "%s %d", &name, &score); fscanf(pFile, "%d %d", &n ne, &score); fscanf(pFile, "%d %d", name, &score);

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

What does the following python code do? f = open("sample.txt", "w") Choose all that apply. Select 2 correct answer(s) Question 14 options: If the file called sample.txt exists, it writes at the bottom of the file writes "w" to the file called sample.txt closes a file called sample.txt opens a file called sample.txt for appending opens a file called sample.txt for reading reads the file called sample.txt starting from the top if the file sample.txt exists, deletes everything in it if the file sample.txt does not exist, it creates the file and opens it for writing
Python Create a text file named “Books.txt”.Open the text file and add the name of at least two books.In your Python3 code file, create a function that will loop through and display a menuwith options to Display, Add, Exit. It will end once the user selects the option for exit.Create another function that will accept the user’s choice with the outcome for eachoption.Display – read the file and output each lineAdd – prompt the user for a book name and append it to the file. Exit – close the file and exit the loopRun the code to display your output.
You have the following function. 1 def funct(a): file = open('file.txt') 3 while True: line = file.readline() if a in line: 4 print(line) file.close() 7 The contents of the file named file.txt is as follows: python python is great! python is the best python is amazing! What would the value of a be if the output is: python is great! python is amazing! Answer:
// Flowers.cpp - This program reads names of flowers and whether they are grown in shade or sun from an input // file and prints the information to the user's screen. // Input: flowers.dat. // Output: Names of flowers and the words sun or shade. #include <fstream> #include <iostream> #include <string> using namespace std; int main() { // Declare variables here // Open input file // Write while loop that reads records from file. fin >> flowerName; // Print flower name using the following format //cout << var << " grows in the " << var2 << endl; fin.close(); return 0; } // End of main function
Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage est Case 1 Please enter the file name or type QUIT to exit:\ninput1.txtENTERTotal: 11.800\nAverage: 2.950\n Test Case 2 Please enter the file name or type QUIT to exit:\ninput2.txtENTERTotal: 17.300\nAverage: 3.460\n Test Case 3 Please enter the file name or type QUIT to exit:\ninput3.txtENTERTotal: 1.124\nAverage: 1.124\n Test Case 4 Please enter the file name or type QUIT to exit:\ninput4.txtENTERFile input4.txt is empty.\n Test Case 5 Please enter the file name or type QUIT to exit:\ninput5.txtENTERFile: input5.txt does not exist.\nPlease enter the file name again or type QUIT to…
Chapter 4. PC #14. Line Numbers (page 265) Write a java program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1. I should be easily type input1.txt and easily print out the output in Eclipse. Please enter the file name or type QUIT to exit:\nquitENTER Test Case 2 Please enter the file name or type QUIT to exit:\nbadfilename.txtENTERFile: badfilename.txt does not exist.\nPlease enter the file name again or type QUIT to exit:\nquitENTER Test Case 3 Please enter the file name or type QUIT to exit:\ninput1.txtENTER1: a\n2: b\n3: c\n4: d\n
In Python, Create a program that will write 100 integers created randomly in a file. The integers will be separated by a space in the file. Read the data back from the file, and display the sorted data. The program should prompt the user to enter a file name. Utilize the following function headers for this problem: Main() WriteNumbers(filename) ReadNumbers(filename) The main function will first prompt the user to enter the filename. Then the main function calls WriteNumbers-then ReadNumbers. The WriteNumbers function opens an output file and writes 100 random numbers as long a large string text. Do not use lists for this problem- please just write a random number followed by a space 100 times. The ReadNumbers function will then read the text file and display the numbers sorted. In order to sort the numbers, read the big string and then split it into a list. Now convert them into integers by using list comprehension and then sort the list. Loop through the list and print each…
In Python, Write a program that prompts the user for a file name. (Use problem 2.txt file) Each line of the file should be preceded by a line number followed by a colon in the program. The numbering of lines should begin at number 1. BE SURE THERE ARE NO EXTRA SPACE BETWEEN THE LINES. problem 2.txt file contents: Python language is incredibly easy to use and learn for new beginners and newcomers. The python language is one of the most accessible programming languages available because it has simplified syntax and not complicated, which gives more emphasis on natural language. Due to its ease of learning and usage, python codes can be easily written and executed much faster than other programming languages. Sample output: Answer Enter a file name: Problem 2.txt line 1 Python language is incredibly easy to use and learn line 2 for new beginners and newcomers. The python language line 3 is one of the most accessible programming languages line 4 available because it has…
I need help making C++ code. I need help writing a program that asks the user for the name of a text file. The program should display the first 10 lines of the file on the screen. If the file has less than 10 lines, the entire file should be displayed along with a message indicating the entire file has been displayed.
#function read file and display reportdef displayAverage(fileName):#open the fileinfile = open(fileName, "r")#variable declaration and initializationtotal = 0count = 0#read filefor num in infile:total = total + float(num)count = count + 1#close the fileinfile.close()#calculate averageaverage = total / count#display the resultprint("Average {:.1f}".format(average)) #method callingdisplayAverage("numbers.txt")
// Flowers.cpp - This program reads names of flowers and whether they are grown in shade or sun from an input // file and prints the information to the user's screen. // Input: flowers.dat. // Output: Names of flowers and the words sun or shade. #include <fstream> #include <iostream> #include <string> using namespace std; int main() { // Declare variables here // Open input file // Write while loop that reads records from file. fin >> flowerName; // Print flower name using the following format //cout << var << " grows in the " << var2 << endl; fin.close(); return 0; } // End of main function
Put the following information in a file. tractor 2000 television 350 dirt_bike 905 Write a program which reads the information from the file and outputs the same information to another file. You will need to upload your program, the input file and the output file. c++