Using fgetc() and fputc()

 #include<stdio.h>

int main(){

    FILE *ptr;

    // fgetc demo for reading a file

    // ptr = fopen("getcdemo.txt", "r");

    // char c = fgetc(ptr);

    // printf("The value of my character is %c\n", fgetc(ptr));

    // printf("The value of my character is %c\n", fgetc(ptr));

    // printf("The value of my character is %c\n", fgetc(ptr));

    // printf("The value of my character is %c\n", fgetc(ptr));

    // printf("The value of my character is %c\n", fgetc(ptr));

    ptr = fopen("putcdemo.txt", "w");

    putc('c', ptr);

    putc('c', ptr);

    putc('c', ptr);

    fclose(ptr);

    return 0;

}