{"id":145722,"date":"2025-07-02T11:34:51","date_gmt":"2025-07-02T06:04:51","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145722"},"modified":"2025-07-02T11:34:51","modified_gmt":"2025-07-02T06:04:51","slug":"library-book-management-system-in-dsa-java","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/library-book-management-system-in-dsa-java\/","title":{"rendered":"DSA Java Project &#8211; Library Book Management System"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Library Book Management System\r\nimport java.util.Scanner;\r\n\r\nclass Book {\r\n    int id;\r\n    String title;\r\n    String author;\r\n    Book prev;\r\n    Book next;\r\n\r\n    Book(int id, String title, String author) {\r\n        this.id = id;\r\n        this.title = title;\r\n        this.author = author;\r\n        this.prev = null;\r\n        this.next = null;\r\n    }\r\n}\r\n\r\nclass Library {\r\n    private Book head;\r\n\r\n    public void addBook(int id, String title, String author) {\r\n        Book newBook = new Book(id, title, author);\r\n        if (head == null) {\r\n            head = newBook;\r\n        } else {\r\n            Book temp = head;\r\n            while (temp.next != null) {\r\n                temp = temp.next;\r\n            }\r\n            temp.next = newBook;\r\n            newBook.prev = temp;\r\n        }\r\n        System.out.println(\"Book added successfully.\");\r\n    }\r\n\r\n    public void displayBooks() {\r\n        if (head == null) {\r\n            System.out.println(\"Library is empty.\");\r\n            return;\r\n        }\r\n        Book temp = head;\r\n        System.out.println(\"\\nBooks in Library:\");\r\n        while (temp != null) {\r\n            System.out.println(\"ID: \" + temp.id + \", Title: \" + temp.title + \", Author: \" + temp.author);\r\n            temp = temp.next;\r\n        }\r\n    }\r\npublic void searchBookById(int id)\r\n{\r\n       Book temp=head;\r\n       while(temp!=null)\r\n       {\r\n          if(temp.id==id)\r\n          {\r\n            System.out.println(\"Book found: ID = \" + temp.id + \", Author = \" + temp.author +\",Title = \" + temp.title);\r\n                return;\r\n          }\r\n          temp=temp.next;\r\n       }\r\n       System.out.println(\"Book not found with \"+id +\" id\");\r\n}\r\n\r\n    public void searchBook(String title) {\r\n        Book temp = head;\r\n        while (temp != null) \r\n        {\r\n            if (temp.title.equalsIgnoreCase(title)) {\r\n                System.out.println(\"Book found: ID = \" + temp.id + \", Author = \" + temp.author);\r\n                return;\r\n            }\r\n            temp = temp.next;\r\n        }\r\n        System.out.println(\"Book not found with \"+title +\" title\");\r\n    }\r\n\r\n\r\n    public void searchBookByAuthor(String author) {\r\n        Book temp = head;\r\n        boolean flag=true;\r\n        while (temp != null) \r\n        {\r\n            if (temp.author.equalsIgnoreCase(author)) {\r\n                System.out.println(\"Book found: ID = \" + temp.id + \", Title = \" + temp.title +\", Author = \" + temp.author);\r\n                flag=false;\r\n            }\r\n            temp = temp.next;\r\n        }\r\n        if(flag==true)\r\n        System.out.println(\"Book not found with \"+author +\" Author\");\r\n    }\r\n\r\n\r\n\r\n    public void deleteBook(int id) {\r\n        Book temp = head;\r\n        while (temp != null &amp;&amp; temp.id != id) {\r\n            temp = temp.next;\r\n        }\r\n        if (temp == null) {\r\n            System.out.println(\"Book not found.\");\r\n            return;\r\n        }\r\n        System.out.println(\"Book found: ID = \" + temp.id + \", Title = \" + temp.title +\", Author = \" + temp.author);\r\n        String choice;\r\n        Scanner scan = new Scanner(System.in);\r\n        System.out.println(\"Are you sure want to delete(yes\/no)\");\r\n        choice=scan.next();\r\n      if(choice.toUpperCase().equalsIgnoreCase(\"YES\"))  \r\n      {\r\n        if (temp.prev != null)\r\n            temp.prev.next = temp.next;\r\n        else\r\n            head = temp.next;\r\n\r\n        if (temp.next != null)\r\n            temp.next.prev = temp.prev;\r\n\r\n        System.out.println(\"Book deleted successfully.\");\r\n      }   \r\n    }\r\n\r\n    public void updateBook(int id, Scanner sc) {\r\n        Book temp = head;\r\n        while (temp != null) {\r\n            if (temp.id == id) {\r\n                System.out.print(\"Enter new title: \");\r\n                sc.nextLine(); \/\/ clear buffer\r\n                temp.title = sc.nextLine();\r\n                System.out.print(\"Enter new author: \");\r\n                temp.author = sc.nextLine();\r\n                System.out.println(\"Book updated successfully.\");\r\n                return;\r\n            }\r\n            temp = temp.next;\r\n        }\r\n        System.out.println(\"Book not found.\");\r\n    }\r\n}\r\n\r\npublic class LibraryManagementSystem {\r\n    public static void main(String[] args) {\r\n        Library lib = new Library();\r\n        Scanner sc = new Scanner(System.in);\r\n        int choice, id;\r\n        String title, author;\r\n\r\n        do {\r\n            System.out.println(\"\\n------------- Library Menu-----------\");\r\n            System.out.println(\"1. Add Book\");\r\n            System.out.println(\"2. Display Books\");\r\n            System.out.println(\"3. Search Book by Title\");\r\n            System.out.println(\"4. Delete Book by ID\");\r\n            System.out.println(\"5. Update Book by ID\");\r\n            System.out.println(\"6. Search Book by ID\");\r\n            System.out.println(\"7. Search Book by Author\");\r\n            System.out.println(\"8. Exit\");\r\n            System.out.println(\"---------------------------------------------\");\r\n            System.out.print(\"Enter your choice: \");\r\n            choice = sc.nextInt();\r\n\r\n            switch (choice) {\r\n                case 1:\r\n                    System.out.print(\"Enter Book ID: \");\r\n                    id = sc.nextInt();\r\n                    sc.nextLine(); \/\/ consume newline\r\n                    System.out.print(\"Enter Title: \");\r\n                    title = sc.nextLine();\r\n                    System.out.print(\"Enter Author: \");\r\n                    author = sc.nextLine();\r\n                    lib.addBook(id, title, author);\r\n                    break;\r\n                case 2:\r\n                    lib.displayBooks();\r\n                    break;\r\n                case 3:\r\n                    sc.nextLine(); \/\/ clear buffer\r\n                    System.out.print(\"Enter title to search: \");\r\n                    title = sc.nextLine();\r\n                    lib.searchBook(title);\r\n                    break;\r\n                case 4:\r\n                    System.out.print(\"Enter Book ID to delete: \");\r\n                    id = sc.nextInt();\r\n                    lib.deleteBook(id);\r\n                    break;\r\n                case 5:\r\n                    System.out.print(\"Enter Book ID to update: \");\r\n                    id = sc.nextInt();\r\n                    lib.updateBook(id, sc);\r\n                    break;\r\n                case 6:\r\n                    System.out.print(\"Enter Book ID to Search: \");\r\n                    id = sc.nextInt();\r\n                    lib.searchBookById(id);\r\n                    break;\r\n                case 7:\r\n                System.out.print(\"Enter author name to Search: \");\r\n                 author=sc.next();\r\n                 lib.searchBookByAuthor(author);\r\n                 break;\r\n                case 8:\r\n                    System.out.println(\"Exiting program.\");\r\n                    break;\r\n                default:\r\n                    System.out.println(\"Invalid choice!\");\r\n            }\r\n        } while (choice != 8);\r\n\r\n        sc.close();\r\n    }\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Library Book Management System import java.util.Scanner; class Book { int id; String title; String author; Book prev; Book next; Book(int id, String title, String author) { this.id = id; this.title =&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31451],"tags":[34786,32295,32318,34795,32316,32317,34791,34792,34793,34794],"class_list":["post-145722","post","type-post","status-publish","format-standard","hentry","category-dsa-java-tutorials","tag-data-structures-algorithms","tag-data-structures-using-java","tag-dsa-java","tag-dsa-java-library-book-management-system-project","tag-dsa-java-practical","tag-dsa-java-program","tag-dsa-java-project","tag-library-book-management-system","tag-library-book-management-system-in-dsa-java","tag-library-book-management-system-project"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DSA Java Project - Library Book Management System - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/library-book-management-system-in-dsa-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DSA Java Project - Library Book Management System - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Library Book Management System import java.util.Scanner; 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