Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
5th Edition
ISBN: 9780134801155
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
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Chapter 10, Problem 1MC

A file that data is written to is known as a(n)

  1. a. input file
  2. b. output file
  3. c. sequential access file
  4. d. binary file
Expert Solution & Answer
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Program Description Answer

The file to which the data is written is known as an 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 a 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 a loss of data. Because, the data that is written to a file is 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, writes a name to it and then closes 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()<SAMPLE-OUTPUT>

Explanation:

The above program is used to open an output file named “my_name.txt”, and writes a name to it and then closes it:

  • In “main()” function, open a file “my_name.txt” and write a name "Tom cruise" to the file using “write()” method.
  • Close the file using “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 is read is called as input file. When a program gets input from the file, then it is called as input file.

Hence, the 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, the 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, the option “D” is wrong.

Sample Output

Data written to my_name.txt

Screenshot of “my_name.txt” file

Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science), Chapter 10, Problem 1MC

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Chapter 10 Solutions

Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)

Ch. 10.1 - Prob. 10.11CPCh. 10.1 - Prob. 10.12CPCh. 10.1 - What is a files read position? Initially, where is...Ch. 10.1 - In what mode do you open a file if you want to...Ch. 10.2 - Prob. 10.15CPCh. 10.2 - What is the purpose of the eof function?Ch. 10.2 - Is it acceptable for a program to attempt to read...Ch. 10.2 - Prob. 10.18CPCh. 10.2 - Which of the following loops would you use to read...Ch. 10.4 - Prob. 10.20CPCh. 10.4 - Prob. 10.21CPCh. 10.4 - Prob. 10.22CPCh. 10 - A file that data is written to is known as a(n) a....Ch. 10 - A file that data is read from is known as a(n) a....Ch. 10 - Before a file can be used by a program, it must be...Ch. 10 - When a program is finished using a file, it should...Ch. 10 - The contents of this type of file can be viewed in...Ch. 10 - This type of file contains data that has not been...Ch. 10 - When working with this type of file, you access...Ch. 10 - When working with this type of file, you can jump...Ch. 10 - This is a small holding section in memory that...Ch. 10 - Prob. 10MCCh. 10 - This is a character or set of characters that...Ch. 10 - This marks the location of the next item that will...Ch. 10 - When a file is opened in this mode, data will be...Ch. 10 - The expression NOT eof (myFi1e) is equivalent to...Ch. 10 - This is a single piece of data within a record. a....Ch. 10 - When working with a sequential access file, you...Ch. 10 - In most languages, when you open an output file...Ch. 10 - The process of opening a file is only necessary...Ch. 10 - Prob. 4TFCh. 10 - Prob. 5TFCh. 10 - When a file that already exists is opened in...Ch. 10 - In control break logic, the program performs some...Ch. 10 - Describe the three steps that must be taken when a...Ch. 10 - Why should a program close a file when its...Ch. 10 - What is a files read position? Where is the read...Ch. 10 - If an existing file is opened in append mode, what...Ch. 10 - In most languages, if a file does not exist and a...Ch. 10 - What is the purpose of the eof function that was...Ch. 10 - What is control break logic?Ch. 10 - Design a program that opens an output file with...Ch. 10 - Design a program that opens the my_name.dat file...Ch. 10 - Prob. 3AWCh. 10 - Design an algorithm that does the following: opens...Ch. 10 - Modify the algorithm that you designed in question...Ch. 10 - Write pseudocode that opens an output file with...Ch. 10 - Prob. 7AWCh. 10 - A file exists on the disk named students.dat. The...Ch. 10 - Why doesn't the following pseudocode module work...Ch. 10 - File Display Assume that a file containing a...Ch. 10 - Item Counter Assume that a file containing a...Ch. 10 - Sum of Numbers Assume that a file containing a...Ch. 10 - Average of Numbers Assume that a file containing a...Ch. 10 - Largest Number Assume that a file containing a...Ch. 10 - Golf Scores The Springfork Amateur Golf Club has a...Ch. 10 - Sales Report Brewster's Used Cars, Inc. employs...Ch. 10 - Lowest and Highest Gas Prices Assume that you have...Ch. 10 - Average Steps Taken A Personal Fitness Tracker is...

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