Question

DATA STRUCTURE C++ LANGUGAE

Create a notepad that allows the user to write text (char by char) on the console. For this
purpose, the user should be able to control and track the movement of the cursor. The user
should be able to navigate to any part of console (cursor control) in order to perform any
insertion or deletion of words.
Internally, the notepad is composed of two-dimensional linked list (every node should
comprise of data element (char) and 4 pointers for navigating left, right, up, and down). Since
text can be written on multiple lines, each row of the 2D linked list represents one line. Each
line is terminated when a newline is inserted in the ADT.

Answer 1

First of all we need to know the basic points of creating file in C++

The fstream library allows us to work with files.

To use the fstream library, include both the standard <iostream> AND the <fstream> header file:

Object/Data Type	Description
ofstream	Creates and writes to files
ifstream	Reads from files
fstream	A combination of ofstream and ifstream: creates, reads, and writes to files

To create a file, use either the ofstream or fstream object, and specify the name of the file.

To write to the file, use the insertion operator (<<).

#include <iostream>
#include <fstream>
using namespace std;

Now To READ a file:

To read from a file, use either the ifstream or fstream object, and the name of the file.

Note that we also use a while loop together with the getline() function (which belongs to the ifstream object) to read the file line by line, and to print the content of the file:

// Create a text string, which is used to output the text file
string myText;

// Read from the text file
ifstream MyReadFile("filename.txt");

// Use a while loop together with the getline() function to read the file line by line
while (getline (MyReadFile, myText)) {
  // Output the text from the file
  cout << myText;
}

// Close the file
MyReadFile.close();