how to create a file in c

1/**
2 * C program to create a file and write data into file.
3 */
4
5#include <stdio.h>
6#include <stdlib.h>
7
8#define DATA_SIZE 1000
9
10int main()
11{
12    /* Variable to store user content */
13    char data[DATA_SIZE];
14
15    /* File pointer to hold reference to our file */
16    FILE * fPtr;
17
18
19    /* 
20     * Open file in w (write) mode. 
21     * "data/file1.txt" is complete path to create file
22     */
23    fPtr = fopen("data/file1.txt", "w");
24
25
26    /* fopen() return NULL if last operation was unsuccessful */
27    if(fPtr == NULL)
28    {
29        /* File not created hence exit */
30        printf("Unable to create file.\n");
31        exit(EXIT_FAILURE);
32    }
33
34
35    /* Input contents from user to store in file */
36    printf("Enter contents to store in file : \n");
37    fgets(data, DATA_SIZE, stdin);
38
39
40    /* Write data to file */
41    fputs(data, fPtr);
42
43
44    /* Close file to save file data */
45    fclose(fPtr);
46
47
48    /* Success message */
49    printf("File created and saved successfully. :) \n");
50
51
52    return 0;
53}