bookShelf

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May 29th, 2026

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package com.examly;
import java.util.*;
public class BookshelfApp {
public static void main(String[] args) {
Book[] books = new Book[5];
Scanner sc = new Scanner(System.in);
int bookId = sc.nextInt();
String title = sc.nextLine();
String author = sc.nextLine();
books[0] = new Book(101, "Java Basics", "Alice");
books[1] = new Book(102, "Python 101", "Bob");
books[2] = new Book(103, "C++ Primer", "Charlie");
books[3] = new Book(104);
books[4] = new Book(105);
Book b = new Book(bookId, title, author);
b.display();
}
}
class Book {
private int bookId;
private String title;
private String author;
public Book(int bookId, String title, String author) {
this.bookId = bookId;
this.title = title;
this.author = author;
}
public Book(int bookId) {
this.bookId = bookId;
title = "Untitled";
author = "Unknown";
}
public void display() {
System.out.println("ID: " + bookId + " | Title: " + title + " | Author: " + author);
}
}

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package com.examly;
import java.util.*;
public class BookshelfApp {
    public static void main(String[] args) {
        Book[] books = new Book[5];
        Scanner sc = new Scanner(System.in);
        int bookId = sc.nextInt();
        String title = sc.nextLine();
        String author = sc.nextLine();

books[0] = new Book(101, "Java Basics", "Alice");
        books[1] = new Book(102, "Python 101", "Bob");
        books[2] = new Book(103, "C++ Primer", "Charlie");
        books[3] = new Book(104);
        books[4] = new Book(105);

Book b = new Book(bookId, title, author);
        b.display();

}
}

class Book {

private int bookId;
    private String title;
    private String author;
    
    public Book(int bookId, String title, String author) {
        this.bookId = bookId;
        this.title = title;
        this.author = author;
    }

public Book(int bookId) {
        this.bookId = bookId;
        title = "Untitled";
        author = "Unknown";
    }

public void display() {
        System.out.println("ID: " + bookId + " | Title: " + title + " | Author: " + author);
    }

}