Problem 59

By Supreme2023-03-16

Problem Statement :

Write a program to write a string in file.

Code:

#include <stdio.h>

int main() {

//59. Write a program to write a string in file

printf("\tWrite String In File\n");
printf("==========================================\n");

char str[100];
printf("\nEnter A String: ");
gets(str);

FILE *fp;
fp = fopen("example.txt", "w");

if (fp == NULL) {
printf("Error Opening File!\n");
return 1;
}

fprintf(fp, "%s", str);
fclose(fp);
printf("\n------------------------------------------\n");
printf("String Written To File Successfully!\n");
printf("------------------------------------------\n");
return 0;
}

Description :

This program is used to write a string in a file using the C programming language.
The program starts with the main function.
The program prints out some information for the user using printf.
It declares a character array called str with a size of 100.
It prompts the user to enter a string using printf and gets, which reads a line of text from the standard input and stores it in the str array.
The program declares a file pointer called fp and initializes it to NULL.
It opens the file "example.txt" in write mode using the fopen function and assigns the file pointer fp to the opened file.
It checks if the file pointer fp is NULL, indicating that the file failed to open. If it is NULL, it prints an error message and returns a value of 1 to indicate an error has occurred.
If the file opened successfully, the program writes the contents of the str array to the file using the fprintf function.
It closes the file using the fclose function.
It prints out a success message using printf and returns a value of 0 to indicate the program ran successfully.

Output Image:

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GTU CODER

Problem 59