lab10Dande

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
int main()
{
    char ch[100], chr[100];
    FILE* fpw, * fpr;
    fpw = fopen("D:\\prgfiles\\lab10C.txt", "a");

    if (fpw == NULL)
    {
        printf("Error");
        exit(1);
    }

    printf("Enter another string:");
    gets(ch);
    fputs(ch, fpw);
    fclose(fpw);

    if ((fpr = fopen("D:\\prgfiles\\lab10C.txt", "r")) == NULL) //open read and compare
    {
        printf("Error! opening file");
        return(1);
    }
    while (1)
    {
        if (fgets(chr, strlen(chr), fpr) == NULL)
            break;

    }
    printf("\nAnd this is the character read from the file = %s \n", chr);
    fclose(fpr);
    return 0;
}

/*
Enter another string:
And this is the character read from the file = how are you?Second string
*/

/*
Enter another string:
And this is the character read from the file = how are you?Second string third one
*/



=====================================================================================================================================================================================================================================================================================================================================================================================================================
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>

struct Friend {
    char firstname[20];
    char lastname[20];
    int streetno;
    char street[20];
    char city[20];
};

int main()
{
    FILE* fpw, * fpr;
    struct Friend b[3];
    int i;
    fpw = fopen("D:\\prgfiles\\lab10E.txt", "wb");
    if (fpw == NULL)
    {
        printf("\ncannot open file\n");
        exit(1);
    }
    printf("\nEnter 3 friends details\n");
    for (i = 0; i < 3; i++) {
        printf("\nEnter first name of friend number %d: ", i + 1);
        fflush(stdin);
        gets(b[i].firstname);
        printf("\nEnter last name of friend number %d: ", i + 1);
        fflush(stdin);
        gets(b[i].lastname);
        printf("\nEnter street number of friend number %d: ", i + 1);
        fflush(stdin);
        scanf("%d", &b[i].streetno);
        getchar();
        printf("\nEnter street name of friend number %d: ", i + 1);
        fflush(stdin);
        gets(b[i].street);
        printf("\nEnter city name of friend number %d: ", i + 1);
        fflush(stdin);
        gets(b[i].city);
    }
    fwrite(b, sizeof(struct Friend), 3, fpw);
    printf("\n!!!!DATA HAS BEM STORAGED!!!!");
    fclose(fpw);
    fpr = fopen("D:\\prgfiles\\lab10E.txt", "rb");
    if (fpr == NULL)
    {
        printf("\ncannot open file\n");
        exit(1);
    }
    fread(b, sizeof(struct Friend), 3, fpr);
    printf("\n Friends Details...\n");
    for (i = 0; i < 3; i++)
    {
        printf("\nfriend #%d:\t%s %s,\t%d %s,\t%s \n", i + 1, b[i].firstname, b[i].lastname, b[i].streetno, b[i].street, b[i].city);

        fclose(fpr);
    }
}