public class Book {

    // Your variables declaration here

    public Book (String author, String title, int year) {
        // Your code here
    }

    public String getAuthor() {
        // Your code here
    }

    public String getTitle() {
        // Your code here
    }

    public int getYear() {
        // Your code here
    }

    public boolean equals(Object other) {
        // Your code here
    }

    public String toString() {
        // Your code here
    }
}