file concept

#include <stdio.h>
#include <conio.h>

void main(void)
{
    FILE *fp;
    char n;

    clrscr();
    printf("Program on Creation of a Text File\n");
    fp = fopen("two.txt","w");
    printf("\nEnter the Characters [^Z to stop] : ");
    while((n=getchar()) != EOF)
        fputc(n,fp);
    printf("\n The file \"two.txt\" is created");
    fclose(fp);
    getch();
    printf("\nNow the file is Opened\n");
    fp = fopen("two.txt","r");
    while (!feof(fp))
       {
         n = fgetc(fp);
         printf("%c ",n);
       }
    fclose(fp);
    printf("\nPress any key to end...");
    getch();
}