package com.example.bookmanagement; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table public class Book { @Id private Long id; @Column private String book_name; @Column private String author_name; public Book(){ } public Book(Long id, String book_name, String author_name, String isbn) { this.id=id; this.book_name=book_name; this.author_name=author_name; } public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getBook_name() { return book_name; } public void setBook_name(String book_name) { this.book_name = book_name; } public String getAuthor_name() { return author_name; } public void setAuthor_name(String author_name) { this.author_name = author_name; } }