fopen() is used to write files in C

This is an example of printing the content of a file using the C language.

Assuming we have a file "new.txt" that contains the following content.

0, hell!o
1,hello!
2,gfdtrhtrhrt
3,demo

Now, let's look at an example.

Example

#include <stdio.h>
#include <conio.h>
void main() {
　　　FILE　*f;
　　　char s;
　　　clrscr();
　　　f = fopen("new.txt", "r");
　　　while((s = fgetc(f)) != EOF) {
　　　　　　printf("%c", s);
　　　}
　　　fclose(f);
　　　getch();
}

Output Result

0, hell!o
1,hello!
2,gfdtrhtrhrt
3,demo

In the above program, we have a text file "new.txt". The file pointer is used to open and read the file. It is displaying the content of the file.

FILE　*f;
char s;
clrscr();
f = fopen("new.txt", "r");
while((s = fgetc(f)) != EOF) {
　　　printf("%c", s);
}