add toString() to BookDTO
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		| @@ -23,4 +23,9 @@ public class BookDTO { | |||||||
|     return price; |     return price; | ||||||
|   } |   } | ||||||
|  |  | ||||||
|  |   @Override | ||||||
|  |   public String toString() { | ||||||
|  |     return "BookDTO [title=" + title + ", price=" + price + "]"; | ||||||
|  |   } | ||||||
|  |  | ||||||
| } | } | ||||||
|   | |||||||
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