commit 8c50ef98b85ef5bcdf80166475e1dc25607b942a
parent 389707b4fd2a205dee5abd484815bd06ed6d6270
Author: Amit Dutta <amitdutta4255@gmail.com>
Date: Tue, 31 Mar 2026 20:31:19 +0530
Implement book data input and logging functionality
This program allows users to input book data, display it, and write it to a log file.
Diffstat:
1 file changed, 105 insertions(+), 0 deletions(-)
diff --git a/Semester_1/practice-c/pc016.c b/Semester_1/practice-c/pc016.c
@@ -0,0 +1,105 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#define FILENAME "Library.txt"
+
+typedef struct Book
+{
+ int id;
+ char title[20];
+ char author[20];
+}Book;
+
+void dataInput(Book *, int);
+void displayData(Book *, int);
+bool writeLog(Book *, int);
+
+int main()
+{
+ Book book[3];
+ int choice;
+
+ printf("== Enter the data ==");
+ dataInput(book, 3);
+ printf("\n\n Data enetered by the user ==");
+ displayData(book, 3);
+
+ if (writeLog(book, 3))
+ {
+ printf("\n\nSuccessfully written the log into \"%s\"", FILENAME);
+ return 0;
+ } else
+ {
+ printf("\nError writing log.");
+ return 1;
+ }
+}
+
+void dataInput(Book *book, int n)
+{
+ int i;
+ char *p;
+
+ for (i = 0; i < n; i++)
+ {
+ printf("\nEnter the Book ID: ");
+ if (scanf("%d", &book[i].id) != 1)
+ {
+ printf("\nError reading bookID.");
+ exit(1);
+ }
+ while (getchar() != '\n')
+ ;
+
+ printf("Enter the Book Title: ");
+ if (fgets(book[i].title, sizeof(book[i].title), stdin) == NULL)
+ {
+ printf("\nError reading title.");
+ exit(1);
+ }
+ p = strchr(book[i].title, '\n');
+ if (p)
+ *p = '\0';
+
+ printf("Enter the Book Author: ");
+ if (fgets(book[i].author, sizeof(book[i].author), stdin) == NULL)
+ {
+ printf("\nError reading Author.");
+ exit(1);
+ }
+ p = strchr(book[i].author, '\n');
+ if (p)
+ *p = '\0';
+ }
+}
+
+void displayData(Book *book, int n)
+{
+ int i;
+ for (i = 0; i < n; i++)
+ {
+ printf("\n\nBook ID: %d"
+ "\nBook Title: %s"
+ "\nBook Author: %s",
+ book[i].id, book[i].title, book[i].author);
+ }
+}
+
+bool writeLog(Book *book, int n)
+{
+ int i;
+ FILE *output = NULL;
+ output = fopen(FILENAME, "w");
+ if (output == NULL)
+ {
+ printf("\n\nError writing file \"%s\"", FILENAME);
+ return false;
+ }
+ for (i = 0; i < n; i++)
+ {
+ fprintf(output, "%d \'%s\' \'%s\'\n", book[i].id, book[i].title, book[i].author);
+ }
+ return true;
+}
