getchar example in C

Header file:

    stdio.h

Synopsis:

     int getchar(void);

Description:

     Inputs a character.  Returns integer value(ascii) of the character read.

getchar function C example:

  #include<stdio.h>
  int main() {
        char ch;
        FILE *fp;
        fp = fopen("file.txt", "w");
        while ((ch = getchar()) != EOF)
                fputc(ch, fp);
        return 0;
  }

  Output:

  jp@jp-VirtualBox:~/cpgms/exp$ ./a.out
  getchar example program in C
  jp@jp-VirtualBox:~/cpgms/exp$ cat file.txt
  getchar example program in C