Homework10

src/ru/skypro/Author.java

@@ -0,0 +1,39 @@
+package ru.skypro;
+
+import java.util.Objects;
+
+//@AllArgsConstructor
+//@Getter
+public class Author {
+    private String firstName;
+    private String lastName;
+
+    public Author(final String firstName,final String lastName) {
+        this.firstName=firstName;
+        this.lastName=lastName;
+    }
+
+    public String getFirstName(){
+        return this.firstName;
+    }
+    public String getLastName(){
+        return this.lastName;
+    }
+    @Override
+    public String toString() {
+        return this.getFirstName() + ' ' + this.getLastName();
+    }
+// Alt+Insert generated
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Author author = (Author) o;
+        return getFirstName().equals(author.getFirstName()) && getLastName().equals(author.getLastName());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getFirstName(), getLastName());
+    }
+}

src/ru/skypro/Book.java

@@ -0,0 +1,48 @@
+package ru.skypro;
+
+import java.util.Objects;
+
+//@AllArgsConstructor
+//@Getter
+public class Book {
+    private String name;
+    private Author author;
+    //@Setter
+    private int publicationYear;
+
+    public Book(final String name,final Author author,final int publicationYear) {
+        this.name=name;
+        this.publicationYear=publicationYear;
+        this.author=author;
+    }
+    public String getName() {
+        return this.name;
+    }
+    public Author getAuthor() {
+        return this.author;
+    }
+    public int getPublicationYear() {
+        return this.publicationYear;
+    }
+    public void setPublicationYear(final int publicationYear) {
+        this.publicationYear = publicationYear;
+    }
+    @Override
+    public String toString() {
+        return this.getName() + " " + this.getAuthor() + ' ' + this.getPublicationYear();
+    }
+    // Alt+Insert generated
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Book book = (Book) o;
+        return getPublicationYear() == book.getPublicationYear() && getName().equals(book.getName()) && getAuthor().equals(book.getAuthor());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getName(), getAuthor(), getPublicationYear());
+    }
+
+}

src/ru/skypro/Main.java

@@ -1,7 +1,14 @@
 package ru.skypro;
 
 public class Main {
-    public static void main(String[] args){
 
+    public static void main(String[] args){
+        var author1 = new Author("Ivan","Ivanov");
+        var author2 = new Author("Петя","Петров");
+        var book1 = new Book("ivanovskaya",author1,2013);
+        var book2 = new Book("Петровская книга",author1,1999);
+        book2.setPublicationYear(2015);
+        System.out.println(book1);
+        System.out.println(book2);
     }
 }