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- import java.util.Scanner;
- public class DogsTest
- {
- private static Scanner input = new Scanner(System.in);
- public static void main(String[] args)
- {
- final String YES = "y";
- String answer;
- _______________________________ my_dog; // Step 1
- do
- {
- // ------------------------------------------------------------
- // The compiler cannot know at compile time what type my_dog is
- // so it is determined at runtime every time the loop iterates
- // ------------------------------------------------------------
- my_dog = getDog();
- System.out.println(my_dog.getName() + " says " + my_dog.speak());
- System.out.print("Try again? ");
- answer = input.next();
- } while (answer.equalsIgnoreCase(YES));
- }
- public static _________________ getDog() // Step 2
- {
- int choice;
- ____________________ selected_dog; // Step 3
- String name,
- color;
- do
- {
- // ----------------------------------
- // A null reference indicates that an
- // invalid menu choice was entered
- // ----------------------------------
- selected_dog = null;
- System.out.print("Choose a Breed (1. Labrador 2. Yorkshire): ");
- choice = input.nextInt();
- switch (choice)
- {
- case 1: System.out.print("Enter dog's name: ");
- name = input.next();
- System.out.print("Enter dog's color: ");
- color = input.next();
- selected_dog = __________________________________; // Step 4
- break;
- case 2: System.out.print("Enter dog's name: ");
- name = input.next();
- selected_dog = __________________________________; // Step 5
- break;
- default: System.out.println("Invalid choice");
- break;
- }
- } while (selected_dog == null);
- return __________________; // Step 6
- }
- }
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