A file that data is written to is known as a(n).______.
a. input file
b. output file
c. sequential access file
d. binary file
The data that are written to a file are known as output file.
Hence, the correct answer is option “B”.
Explanation of Solution
Output file:
- A file where the data are written is called as “output file”. The output file is created on the disk and allows the program to write data on it.
- The “output file” must be accessed using the file name and must be closed after the usage of the file.
- If the file is not closed properly, it can cause loss of data because the data that are written to a file are stored in a buffer first.
- After closing a file, the buffer saves the contents into the disk.
Example for output file:
The following program is used to open an output file, write a name to it, and then close it:
#Function main
def main():
#Open an outfile for writing
outfile=open('my_name.txt','w')
#Write the name into file
outfile.write("Tom cruise")
#Close the file
outfile.close()
#Display statement
print('Data written to my_name.txt')
#Call the main function
main()
Explanation:
The above program is used to open an output file named “my_name.txt”, write a name to it, and then close it:
- In the “main()” function, open a file “my_name.txt” and write a name "Tom cruise" to the file using the “write()” method.
- Close the file using the “close()” method. Display the intimation message on the screen.
- Call the “main()” function.
Explanation for the incorrect options:
Input file:
A file from which the data are read is called as an input file. When a program gets input from the file, then it is called as input file.
Hence, option “A” is wrong.
Sequential access file:
In sequential access method, the contents of the file are accessed from the beginning to the end.
Hence, option “C” is wrong.
Binary file:
Binary file holds data that are not represented in the form of text. The executable programs are stored in the type of binary file.
- Due to this, the contents present in the binary file cannot be viewed with normal text editors.
Hence, option “D” is wrong.
Output:
Data written to my_name.txt
Screenshot of “my_name.txt” file
Want to see more full solutions like this?
Chapter 6 Solutions
Starting Out with Python (4th Edition)
Additional Engineering Textbook Solutions
Artificial Intelligence: A Modern Approach
Starting out with Visual C# (4th Edition)
Starting Out With Visual Basic (7th Edition)
Starting Out with C++ from Control Structures to Objects (8th Edition)
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Starting Out With Visual Basic (8th Edition)
- Line Numbers Write a 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. Pythonarrow_forwardTime remaining: 01:47:21 Computer Science The file numbers.txt contains integer numbers, one number per line. The contents could look like this: 2 45 108 3 - 10 1100 ...etc... Please write a function named largest, which reads the file and returns the largest number in the filearrow_forwardWord List File WriterWrite a program that asks the user how many words they would like to write to a file, andthen asks the user to enter that many words, one at a time. The words should be writtento a file. (in phyton)arrow_forward
- Programming Exercises 1. File Display Assume a file containing a series of integers is named numbers.txt and exists on the computer's disk. Write a program that displays all of the numbers in the file. VideoNote File Display 2. File Head Display Write a program that asks the user for the name of a file. The program should display only the first five lines of the file's contents. If the file contains less than five lines, it should display the file's entire contents.arrow_forwardFunction files can have zero, one, or several output arguments. False True Oarrow_forwardFile Display Assume that a file containing a series of integers is named numbers.dat and exists on the computer’s disk. Design a program that displays all of the numbers in the file. File Display IN Q Basic langauage and flowchartarrow_forward
- Function ________repositions the file position pointer to a specific location in the filearrow_forward#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")arrow_forwardIn C++arrow_forward
- True or falsearrow_forwardC++ Visual Studio 2019 Write a program that asks the user for the name of a file. The program should display the contents of the file on the screen. Each line of screen output should be preceded with a line number, followed by a colon. The line numbering should start at 1. Here is an example: George Rolland 127 Academy Street Brasstown, NC 28706 If the file's contents won't fit on a single screen, the program should display 24 lines of output at a time, and then pause. Each time the program pauses, it should wait for the user to strike a key before the next 24 lines are displayed. Note: Save text below as the file to use and name it forChap12.txt file for this assignment. The line numbers should NOT be reset for each screen. Text: No one is unaware of the name of that famous English shipowner, Cunard. In 1840 this shrewd industrialist founded a postal service between Liverpool and Halifax, featuring three wooden ships with 400-horsepower paddle wheels and a burden of 1,162 metric…arrow_forwardWhen you work with a __________ file you access data from the beginning of the file to the end of the file. a. direct access b. random access c. sequential access d. binary accessarrow_forward
- Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:CengageC++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr