Library Management System Project In Java With Source Code May 2026

public class TransactionService private Map<Integer, Integer> issuedBooks = new HashMap<>(); // bookId -> memberId

@Override public String toString() " + title + " package model; public class Member private int memberId; private String name; private String email; private String phone; Library Management System Project In Java With Source Code

public void showAllBooks() Author

// Book operations public void addBook(String title, String author, String genre, int quantity) Book book = new Book(nextBookId++, title, author, genre, quantity); books.add(book); System.out.println("Book added successfully! ID: " + book.getId()); public class TransactionService private Map&lt

public TransactionService(LibraryService libraryService) this.libraryService = libraryService; issuedBooks = new HashMap&lt

public Book(int id, String title, String author, String genre, int quantity) this.id = id; this.title = title; this.author = author; this.genre = genre; this.quantity = quantity;