I need translate this class diagram to simple gui java code application main functions is add , delete, payment, search book

User -userName: String -ID: int -password: String -firstName: String -lastName: String +login() +logOut() +searchBook() 1..* 1..* Librarian +addBook() +deleteBook() +updateBook() Customer -email: String -phoneNumber: int +showBookInfo() +buyBook() +borrowsBook() +downloadBook() Book -ICBN: int -Title: String -Auther: String -price: double -type: String -date; Date -description: String +isAvailable() +displayBook() +displayBookDetails() 1.* +1 1..* Payment Order 1 -order: Order -Id: int -cardNumber: String -date: Date -cardPin: Date -state: String -customer: Customer -book: Book 1 1 +payment() +createOrder() -userName: String -userContactAddress: String -Id: int Bill -date: Date -amount: int 1-type: String -discount: double -coupon: String -customer: Customer +showBillDetail() +calculatePrice() +editOrder() +deleteOrder()