File Class 02

#include <stdio.h>

int main() {
    int a = 5;
    int i;
    for (i = 1; i <= a; i++) {  // i = 6
        printf("%d\n", i);
    }
    printf("%d\n", i);
}

// int main() {
//  FILE *file;
//  file = fopen("input.txt", "r");

//  char name[500];
//  int id;
//  double marks;
//  // EOF = 0 fscanf = 0   0 != 0
//  if(file == NULL) {
//      printf("File does not exist!\n");   // EOF = End of File
//  } else {
//      while(fscanf(file, "%s %d %lf", name, &id, &marks) != EOF) {
//          printf("%s %d %lf\n", name, id, marks);
//      }
//  }
// }




// reading data from file
// int main() {
    // FILE *file;
    // file = fopen("input.txt", "r");
    // char name[500];
    // int id;

    // if(file == NULL) {
    //  printf("File does not exist!\n");
    // } else {
    //  // taking input from console
    //  // scanf("%s", name);

    //  // taking input from file
    //  fscanf(file, "%d", &id);
    //  printf("%d\n", id); // output -> console

    //  fprintf(file, "%d\n", id);   // -> file e print korbe
    // }
// }






/*
    Creating a new File
    fopen("file path", file_mode);

    opening an existing file
    fopen("file path", file_mode);

    closing a file
    fclose(file_pointer);

    Reading from and writing information to a file

        To write something in a file ->
        fputs(string, file)
        fprintf(file_pointer, formate_specifier, variable_Name)

        To read something in a file ->
        fgets(variable, size, file_pointer)
        fscanf(file_pointer, formate_specifier, variable_name) ---> %[^\n]

*/