Homework Help is Here – Start Your Trial Now!
Engineering
Computer Science
have a program that prints from a txt file one line at a time. I want to print 3 lines simultaneously but can't figure out how.  Attached is the what I got so far on the program and the txt file

have a program that prints from a txt file one line at a time. I want to print 3 lines simultaneously but can't figure out how.  Attached is the what I got so far on the program and the txt file

Database System Concepts
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
icon
Related questions
Question

C++

I have a program that prints from a txt file one line at a time. I want to print 3 lines simultaneously but can't figure out how. 

Attached is the what I got so far on the program and the txt file

Certainly! Here is the transcription of the provided code with explanations suitable for an educational website. --- ### Understanding File Handling in C++ The following C++ code demonstrates how to handle file operations using `ifstream` to read from a file named "thesongs.txt". The program prompts the user to enter a file name and checks if the input matches "thesongs.txt". If it does, the program opens the file, reads its contents line by line, and displays each line until the end of the file is reached. Finally, it prints a message indicating that the last song has been read. ```cpp #include <iostream> #include <fstream> #include <string> using namespace std; int main() { ifstream file; string str; string line; cout << "Enter file name: "; cin >> str; if (str == "thesongs.txt") { file.open("thesongs.txt"); if (file.is_open()) { cin.ignore(); while (!file.eof()) { getline(file, line); cout << line << endl; cin.ignore(); } cout << "That was the last song!" << endl; } else { cout << "Unable to open file." << endl; } } else { cout << "File name does not match." << endl; } return 0; } ``` ### Code Explanation 1. **Headers and Namespace:** ```cpp #include <iostream> #include <fstream> #include <string> using namespace std; ``` These lines include necessary libraries and declare the use of the standard namespace. 2. **Main Function:** ```cpp int main() { ``` This is the entry point of every C++ program. 3. **Variable Declarations:** ```cpp ifstream file; string str; string line; ``` - `ifstream file;`: Declares an input file stream object. - `string str;`: Declares a string variable to hold the user's file name input. - `string line;`: Declares a string variable to hold each line read from the file. 4. **User Input:** ```cpp cout << "Enter file name: "; cin >> str; ``` Prompts the user to enter the file name
Transcribed Image Text:Certainly! Here is the transcription of the provided code with explanations suitable for an educational website. --- ### Understanding File Handling in C++ The following C++ code demonstrates how to handle file operations using `ifstream` to read from a file named "thesongs.txt". The program prompts the user to enter a file name and checks if the input matches "thesongs.txt". If it does, the program opens the file, reads its contents line by line, and displays each line until the end of the file is reached. Finally, it prints a message indicating that the last song has been read. ```cpp #include <iostream> #include <fstream> #include <string> using namespace std; int main() { ifstream file; string str; string line; cout << "Enter file name: "; cin >> str; if (str == "thesongs.txt") { file.open("thesongs.txt"); if (file.is_open()) { cin.ignore(); while (!file.eof()) { getline(file, line); cout << line << endl; cin.ignore(); } cout << "That was the last song!" << endl; } else { cout << "Unable to open file." << endl; } } else { cout << "File name does not match." << endl; } return 0; } ``` ### Code Explanation 1. **Headers and Namespace:** ```cpp #include <iostream> #include <fstream> #include <string> using namespace std; ``` These lines include necessary libraries and declare the use of the standard namespace. 2. **Main Function:** ```cpp int main() { ``` This is the entry point of every C++ program. 3. **Variable Declarations:** ```cpp ifstream file; string str; string line; ``` - `ifstream file;`: Declares an input file stream object. - `string str;`: Declares a string variable to hold the user's file name input. - `string line;`: Declares a string variable to hold each line read from the file. 4. **User Input:** ```cpp cout << "Enter file name: "; cin >> str; ``` Prompts the user to enter the file name
### Text Transcription for Educational Website The image contains a list of what appear to be music tracks along with the names of the artists and the years of release. Here is the transcribed text: 1. **24k Magic** - Artist: Bruno Mars - Year: 2011 2. **Bang Bang** - Artist: Jessie J - Year: 2014 3. **Let me go!** - Artist: Some Guy - Year: 3012 4. **Antidote** - Artist: Travis - Year: 2203 5. **Psycho** - Artist: Malone - Year: 1234 The text appears in a structured format with numbers indicating the position of each track. The structure follows a consistent pattern that includes the name of the track, the artist, and the year of release in sequential order. There are no graphs or diagrams present in the image.
Transcribed Image Text:### Text Transcription for Educational Website The image contains a list of what appear to be music tracks along with the names of the artists and the years of release. Here is the transcribed text: 1. **24k Magic** - Artist: Bruno Mars - Year: 2011 2. **Bang Bang** - Artist: Jessie J - Year: 2014 3. **Let me go!** - Artist: Some Guy - Year: 3012 4. **Antidote** - Artist: Travis - Year: 2203 5. **Psycho** - Artist: Malone - Year: 1234 The text appears in a structured format with numbers indicating the position of each track. The structure follows a consistent pattern that includes the name of the track, the artist, and the year of release in sequential order. There are no graphs or diagrams present in the image.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
File Input and Output Operations
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
SEE MORE TEXTBOOKS