#include <stdio.h>

int main(void) {
    FILE *fp;
    fp = fopen("tekstfile.txt", "w");
    if (fp == NULL) {
        printf("Kan file tekstfile.txt niet openen!");
    }
    else {
        fprintf(fp, "Hallo\nDaar\n");
        fclose(fp);
    }
    fp = fopen("binfile.bin", "wb");
    if (fp == NULL) {
        printf("Kan file binfile.bin niet openen!");
    }
    else {
        fprintf(fp, "Hallo\nDaar\n");
        fclose(fp);
    }
    getchar();
    return 0;
}