Library Management System Project In Java With Source Code Link

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

private JButton addBookButton; private JButton addUserButton; private JButton borrowBookButton; private JButton returnBookButton; Library Management System Project In Java With Source Code

addBookButton = new JButton("Add Book"); addUserButton = new JButton("Add User"); borrowBookButton = new JButton("Borrow Book"); returnBookButton = new JButton("Return Book"); public class TransactionService private Map&lt