Before data can be written to or read from a file, the following things must happen: A file stream object must be created. The file must be opened and linked to the file stream object. Define an ofstream object to write data to the file, outputFile. Open the file, outputFile, and write the line “I am almost done\n.” to it. (Three lines of code) C++ Programming lanuage

Before data can be written to or read from a file, the following things must happen: A file stream object must be created. The file must be opened and linked to the file stream object. Define an ofstream object to write data to the file, outputFile. Open the file, outputFile, and write the line “I am almost done\n.” to it. (Three lines of code) C++ Programming lanuage

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter8: I/o Streams And Data Files

Section8.4: File Streams As Function Arguments

Problem 3E

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LAB 3.5 Reading and Writing to a FileBring in billfile.cpp from the Lab 5 folder. The code is as follows: // This program will read in the quantity of a particular item and its price. // It will then print out the total price. // The input will come from a data file and the output will go to // an output file. // PLACE YOUR NAME HERE #include <fstream> #include <iomanip> using namespace std; int main() { ifstream dataIn;// defines an input stream for a data file ofstream dataOut;// defines an output stream for an output file int quantity;// contains the amount of items purchased float itemPrice;// contains the price of each item float totalBill; // contains the total bill, i.e. the price of all items dataIn.open("transaction.dat");// This opens the file. dataOut.open("bill.out"); // Fill in the appropriate code in the blank below << setprecision(2) << fixed << showpoint;// formatted output // Fill in the input statement that brings in…
Write a function, WriteFile(), that saves information to a text file. The function receives a string value (obtained from Question 3.2) that is written to the text file. The function does not return any value to the calling statement.Store the output text file as Output.txt.The output must be added on a new line to the text file each time without erasing any existing The above functions (ReadFile(), Decode(), and WriteFile()) must now be implemented in the main program in the following order:1. Create a list of type character, i.e. the data type that is stored in the list is text.2. Read the contents of the file to the lists with ReadFile(). Display the number of lines that are read from the text file.3. Decode each card number with the Decode() function by passing the list to the function.4. As each card number is decoded, write the information to an output file with WriteFile(). The WriteFile() function should be called from within the Decode() function.
Write a program to copy an existing text file from your hard disk to another file that you will call: Your Last Name.txt, e.g. if your last name was Smith, the output file name would be Smith.txt. You can create a text file and add two or three lines of text to it. You may use the attached program as your program or write your own. Please note the inclusion of <fstream> at the top of the program. Also pay attention to the open and close statements in the program. // LAB6.cpp// Kunika Saxena// File: CopyFile.cpp// Copies file InData.txt to file OutData.txt #include <cstdlib> // for the definition of EXIT_FAILURE#include <fstream> // required for external file streams#include <iostream>using namespace std; // Associate stream objects with external file names#define inFile "InData.txt"#define outFile "Saxena.txt" // Functions used ...// Copies one line of textint copyLine(ifstream&, ofstream&); int main(){ // Local data ... int…
(C#)Assume inputFile references a StreamReader object that is associated with a file that is already open. Which statement can read all the items in the file without knowing how many items the file contains? Question 9 options: while (!inputFile.EndOfStream) { } while (inputFile.EndOfStream) { } while (inputFile != EndOFStream) { } while (inputFile == EndOfStream) { }
When a file is opened, a(n)_________ is created, which is a small holding section of memory that data is first written to.
c++ Given the input file name (datafile.txt) which has the following data: John 95 3.8 A Based on this file and data in it, answer the questions 5 thru 13 5. Write the declaration section to declare variable names for these data items. 6. Declare an input file stream object. 7. Declare an output file stream object. 8. Write the statement to open the input file (datafile.txt) 9. Write the statement to open the output file (outfile.txt). 10. Write the statement to read these data items from the input file. 11. Write a statement to send all data to the output file. 12. Write the statement to close the input file. 13. Write the statement to close the output file.
Under what circumstances is a file stream object’s ios::hardfail bit set? What member function reports the state of this bit?
exampleOne This program reads data from a physical file, create a reference to the file, perform a computation, display the result, close the file. package chario; import java.util.Scanner; import java.io.*; //public class Chario { // public static void main(String[] args) throws IOException { File file1 = new File("fileOne.txt"); //Create a reference to the physical file /* Use Notepad to create a text file named fileOne.txt which must be in the same directory that src is in To find src, open your project in NetBeans and hover its name, which is in the top left just below the Projects menu; this will display the path to your project My project path is, yours will be different I:\\Ajava\161\WPPractice\IO\charstream\chario My fileOne.txt is located in chario */ Scanner getit = new Scanner( file1 ); // connect a Scanner to the file int num, square; num = getit.nextInt(); square = num * num ; System.out.println("The square of " + num + " is " + square); getit.close(); //Close the stream…
When a program works with an input file, a special value known as a(n) __________ is internally maintained for that file and marks the location of the next item that will be read from the file. a. input locator b. accumulator c. read position d. sequential read value
Q2: Suppose that the file (employee.txt) shown in the figure was stored in the default path, the data stored in this file is employee's name (string), his age (integer), and his salary (double); this data is stored for unknown number of employee. Write a program that uses a function which receives a file stream object of the file (employee.txt) and then it creates another file to store the names of the employees whose ages are over 30 years. T employee.txt - Notepad ~ — o File Edit Format View Help Ahmed 33 Ali 37 hasan 4 mohammed kamal 55 bassam 25 hussam 22 1.5e+06 1.6e+06 1.7e+06 43 1.8e+06 1.9e+06 900000 800000 100% Windows (CRLF) UTF-8
Write a program that writes user input to a text file and then reads the contents from that file. You will need to perform the following steps. Prompt the user for the name of a file to append to and then another prompt for them to enter a sentence. Open the file they requested in append mode and write the user_sentence to this file. Don't forget to close the file when you are done writing to it (explicitly or implicitly). Open the file you just wrote to in read mode and read the contents of the file. Print the complete file contents to the console/shell. Provide comments in your code to explain the logic used. Ensure your program works as expected by testing it with different sentences.
The standard library function int fseek(FILE *fp, long offset, int origin) is identical to Iseek except that fp is a file pointer instead of a file descriptor and the return value is an int status, not a position. Write fseek. Make sure that your fseek coordinates properly with the buffering done for the other functions of the library.