Question

Write a class named Book containing:

Two instance variables named title and author of type String.

A constructor that accepts two String parameters. The value of the first is used to initialize the value of title and the value of the second is used to initialize author.

A method named toString that accepts no parameters. toString returns a String consisting of the value of title, followed by a newline character, followed by the value of author.

Answer 1

//Book.java
public class Book {
    private String title;
    private String author;

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

    @Override
    public String toString() {
        return "Book{" +
                "title='" + title + '\'' +
                ", author='" + author + '\'' +
                '}';
    }

    public static void main(String args[]){
        Book book = new Book("title","author");
        System.out.println(book);
    }
}