public Member findMemberById(int id) return members.stream().filter(m -> m.getMemberId() == id).findFirst().orElse(null);
public TransactionService(LibraryService libraryService) this.libraryService = libraryService; Library Management System Project In Java With Source Code
public void issueBook(int bookId, int memberId) Book book = libraryService.findBookById(bookId); Member member = libraryService.findMemberById(memberId); public Member findMemberById(int id) return members
Feel free to use this source code in your college projects, learn from it, and modify it as needed. – GitHub Repository Link (Replace with your actual link) m.getMemberId() == id).findFirst().orElse(null)
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;
public Member(int memberId, String name, String email, String phone) this.memberId = memberId; this.name = name; this.email = email; this.phone = phone;