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a guest Oct 13th, 2019 73 Never
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  1. package ex73;
  2.  
  3. public class Book {
  4.     private static int counter;
  5.     private String title;
  6.     private String author;
  7.     private int id;
  8.  
  9.     Book(String title, String author) {
  10.         this.title = title;
  11.         this.author = author;
  12.         id = ++counter;
  13.     }
  14.  
  15.     @Override
  16.     public String toString() {
  17.         return String.format("Автор: %s%nНазвание: %s%nИндекс: %d%n", author, title, id);
  18.     }
  19.  
  20.     int getId() {
  21.         return id;
  22.     }
  23.  
  24.     String getTitle() {
  25.         return title;
  26.     }
  27.  
  28.     String getAuthor() {
  29.         return author;
  30.     }
  31.  
  32.     static int getCounter() {
  33.         return counter;
  34.     }
  35. }
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