File Handling in C language.

File operations-writing and reading in files.

 #include <stdio.h>

int main(int argc, char const* argv[])

{

// creating first file

// storing pointer of start of file

    FILE* first_file;

    first_file = fopen("test1.txt", "w");

    // checking if file is opened correctly

    if (first_file == 0)

    {

        printf("Not able to find file.");

    }

    else

    {

    // writes the content in file

        fprintf(first_file, "This is first file of c language .\n"); //--------------

        char* data = "I am happy to programming file operations .";

        fputs(data, first_file); //---------------

        // closing file

        fclose(first_file);

    }

// Reading the file content

    first_file = fopen("test1.txt", "r");

    char content [50];

    int i = 0;

// gets the line or(gets characters upto the index given(-1))

    while (fgets(content, 6, first_file) != NULL)

    {

        printf("\n%d\n", i);

        i++;

        // fgets(content,50,first_file);               //using fgets() function

        printf("%s", content);

    }

// //printing by using fscanf() function

// while (fscanf(first_file, "%s", content) != EOF)         //EOF ==> end of file

//     {

//     printf("%s\n", content);

//     }

// // fscanf(first_file, "%c", content);

// // printf("%c", *content);

    fclose(first_file);

    return 0;

}