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71 lines
1.4 KiB
71 lines
1.4 KiB
/*
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* SD2x Homework #8
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* This class represents a single book.
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* Please do not change this code! Your solution will be evaluated using this version of the class.
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*/
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public class Book implements Comparable<Book> {
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@Override
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public String toString() {
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return "Book [title=" + title + ", author=" + author
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+ ", publicationYear=" + publicationYear + "]";
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}
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protected String title;
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protected String author;
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protected int publicationYear;
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public Book(String title, String author, int year) {
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this.title = title;
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this.author = author;
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this.publicationYear = year;
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}
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public String getTitle() {
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return title;
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}
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public String getAuthor() {
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return author;
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}
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public int getPublicationYear() {
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return publicationYear;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj)
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return true;
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if (obj == null)
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return false;
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if (getClass() != obj.getClass())
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return false;
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Book other = (Book) obj;
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if (author == null) {
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if (other.author != null)
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return false;
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} else if (!author.equals(other.author))
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return false;
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if (publicationYear != other.publicationYear)
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return false;
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if (title == null) {
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if (other.title != null)
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return false;
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} else if (!title.equals(other.title))
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return false;
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return true;
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}
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@Override
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public int compareTo(Book other) {
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return this.publicationYear - other.publicationYear;
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}
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@Override
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public int hashCode() {
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return this.author.hashCode();
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}
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}
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