编辑代码

package com.demo;

public class Book {
    private int bookId;
    private String title;
    private boolean borrowed;

    public Book(int bookId, String title) {
        this.bookId = bookId;
        this.title = title;
        this.borrowed = false;
    }

    public int getBookId() {
        return bookId;
    }

    public String getTitle() {
        return title;
    }

    public boolean isBorrowed() {
        return borrowed;
    }

    public void setBorrowed(boolean borrowed) {
        this.borrowed = borrowed;
    }
}