Starting Out with Python (3rd Edition)
3rd Edition
ISBN: 9780133582734
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 6.2, Problem 13CP
Explanation of Solution
“readline()” method:
The purpose of “readline()” method is to read a line which contains a string of characters that are terminated with “\n” from a file. It reads a file content one at a time.
Syntax:
The following syntax is used to read a line from a file:
variable_name = file_object.readline()
- • “variable_name” is the name of the variable which is used to store the line...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In the class String, the substring method inserts a String into another String.
-True
or
-False
What is the name of the operation for string objects?
Write a function that reverses a string. The header of the function is:
def reverse(s):Write a test program that prompts the user to enter a string, invokes the reverse function, and displays the reversed string.
Chapter 6 Solutions
Starting Out with Python (3rd Edition)
Ch. 6.1 - What is an output file?Ch. 6.1 - What is an input file?Ch. 6.1 - What three steps must be taken by a program when...Ch. 6.1 - Prob. 4CPCh. 6.1 - Prob. 5CPCh. 6.1 - When writing a program that performs an operation...Ch. 6.1 - If a file already exists, what happens to it if...Ch. 6.1 - What is the purpose of opening a file?Ch. 6.1 - What is the purpose of closing a file?Ch. 6.1 - Prob. 10CP
Ch. 6.1 - In what mode do you open a file if you want to...Ch. 6.2 - Write a short program that uses a for loop to...Ch. 6.2 - Prob. 13CPCh. 6.2 - Assume the file data.txt exists and contains...Ch. 6.2 - Prob. 15CPCh. 6.3 - Prob. 16CPCh. 6.3 - Prob. 17CPCh. 6.3 - Prob. 18CPCh. 6.4 - Prob. 19CPCh. 6 - A file that data is written to is known as...Ch. 6 - A file that data is written to is known as...Ch. 6 - Before a file can be used by a program, it must be...Ch. 6 - When a program is finished using a file, it should...Ch. 6 - The contents of this type of file can be viewed in...Ch. 6 - This type of file contains data that has not been...Ch. 6 - When working with this type of file, you access...Ch. 6 - When working with this type of file, you can jump...Ch. 6 - This is a small holding section" in memory that...Ch. 6 - This marks the location of the next item that will...Ch. 6 - When a file is opened in this mode, data will be...Ch. 6 - This is a single piece of data within a record. a....Ch. 6 - Prob. 13MCCh. 6 - Prob. 14MCCh. 6 - Prob. 15MCCh. 6 - When working with a sequential access file, you...Ch. 6 - When you open a file that file already exists on...Ch. 6 - The process of opening a file is only necessary...Ch. 6 - Prob. 4TFCh. 6 - When a file that already exists is opened in...Ch. 6 - Prob. 6TFCh. 6 - You can have more than one except clause in a...Ch. 6 - Prob. 8TFCh. 6 - Prob. 9TFCh. 6 - Describe the three steps that must be taken when a...Ch. 6 - Why should a program close a file when it's...Ch. 6 - What is a read position? where is the read...Ch. 6 - If an existing file is opened in append mode, What...Ch. 6 - If a file does not exist and a program attempts to...Ch. 6 - Write a program that opens an output file with the...Ch. 6 - Write a program that opens the my_name.txt file...Ch. 6 - Write code that does the following: opens an...Ch. 6 - Prob. 4AWCh. 6 - Modify the code that you wrote in problem 4 so it...Ch. 6 - Write code that opens an output file with the...Ch. 6 - A file exists on the disk named students. txt. The...Ch. 6 - A file exists on the disk named students txt. The...Ch. 6 - Prob. 9AWCh. 6 - Prob. 10AWCh. 6 - File Display Assume a file containing a series of...Ch. 6 - File Head Display Write a program that asks the...Ch. 6 - Line Numbers Write a program that asks the user...Ch. 6 - Item Counter Assume a file containing a series of...Ch. 6 - Sum of Numbers Assume a file containing a series...Ch. 6 - Average of Numbers Assume a file containing a...Ch. 6 - Random Number File Writer Write a program that...Ch. 6 - Random Number File Reader This exercise assumes...Ch. 6 - Prob. 9PECh. 6 - Golf Scores The Springfork Amateur Golf Club has a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- What happens if you try to retrieve a character in a string with an incorrect index?arrow_forwardAlternate Character DisplayWrite a method that accepts a String object as an argument and then returns the alternate characters as substring starting from index 0. For instance, if the string argument passed is “GREAT”, the method should return “GET”. Demonstrate the method in a program that asks the user to input a string and then passes it to the method.arrow_forwardWhen you pass null as an argument to the Split function of a string object, what characters are used as delimiters?arrow_forward
- True or False: The String class’s replace method can replace individual characters, but cannot replace substrings.arrow_forwardpublic String firstAndLast(String str) { //declare and create your first char //declare and create your second char //return your first and last char as a String }arrow_forwardWhat characters are used as delimiters when null is passed as an argument to the Split method of a string object?arrow_forward
- PROBLEM STATEMENT: Return the longest String! CN YOU HELP ME WITH THIS JAVA CODE PROBLEMarrow_forwardWrite the countVowels function which counts the number of vowels using the string class as follows: int countVowels(const string& s) Write a test program that prompts the user to enter a string, invokes the countVowels function and displays the total number of vowels in the string.arrow_forwardHow do you read a string that contains spaces?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT