package com.study.demo3;

public class Book {
    protected String isbn;
    protected String title;
    protected boolean available;

   
    public Book() {
        this.available = true;
    }

   
    public Book(String isbn, String title) {
        this.isbn = isbn;
        this.title = title;
        this.available = true;
    }

   
    public Book(String isbn, String title, boolean available) {
        this.isbn = isbn;
        this.title = title;
        this.available = available;
    }

   
    public String getIsbn() {
        return isbn;
    }

    public void setIsbn(String isbn) {
        this.isbn = isbn;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public boolean isAvailable() {
        return available;
    }

    public void setAvailable(boolean available) {
        this.available = available;
    }

   
    public void returnBook() {
        if (!this.available) {
            this.available = true;
            System.out.println(this.title + " (ISBN: " + this.isbn + ") has been returned and is now available.");
        } else {
            System.out.println(this.title + " (ISBN: " + this.isbn + ") is already available.");
        }
    }
}