C++ program to read file word by word - Coding

Given a text file, extract words from it. In other words, read the content of file word by word. Example :

Input: And in that dream, we were flying.
Output:
And
in
that
dream,
we
were
flying.

Approach : 1) Open the file which contains string. For example, file named “file.txt” contains a string “geeks for geeks”. 2) Create a filestream variable to store file content. 3) Extract and print words from the file stream into a string variable via while loop.

CPP

// C++ implementation to read
// file word by word
#include <bits/stdc++.h>
using namespace std;
 
// driver code
int main()
{
    // filestream variable file
    fstream file;
    string word, t, q, filename;
 
    // filename of the file
    filename = "file.txt";
 
    // opening file
    file.open(filename.c_str());
 
    // extracting words from the file
    while (file >> word)
    {
        // displaying content
        cout << word << endl;
    }
 
    return 0;
}

Output:

geeks
for
geeks.

Time Complexity: O(N) // going through the entire file

Auxiliary Space: O(1)

Reffered: https://www.geeksforgeeks.org

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Category:	Coding
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