### Question 37```javapublic static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog() }; for(int i = 0; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new Cat(), new Cat(), new Cat() }; for(int i = 0; i < cats.length; i++) cats[i].me(); System.out.print(Dog.getCount() + " woofs and"); System.out.println(Cat.getCount() + " mews"); System.out.println("======>>> " + decision());}class Counter { private static int count; public static void inc() { count++; } public static int getCount() { return count; }}class Dog extends Counter { public Dog() {} public void wo() { inc(); }}class Cat extends Counter { public Cat() {} public void me() { inc(); }}```The Correct answer:#### Multiple Choice Options:- ☐ Nothing is output- ☐ 2 woofs and 5 mews- ☐ 2 woofs and 3 mews- ☐ 5 woofs and 5 mews#### Explanation:The program consists of the following classes:- `Counter`: A base class with a static count variable that all subclasses share.- `Dog` and `Cat`: Derived from `Counter`.Here is the program's logic:1. The `main` method creates two `Dog` objects and calls the `wo` method on each.2. `wo` increments the shared `count` variable each time it is called.3. Then it creates three `Cat` objects and calls the `me` method on each.4. `me` also increments the same shared `count` variable.Thus,- Each call to `wo` adds 1 to the count, so with two `Dog` objects, that adds 2 to the count.- Each call to `me` adds 1 to the count, so with three `Cat` objects, that adds 3 to the count.- The total count thus becomes 2 (woofs) + 3 (mews) = 5.The displayed output will be:`2 woofs and 3 mews`.So, the correct option is:☑ 2 woofs and

The given code has a method call decision(), but there is no method definition of decision()…

Question 37 public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new Cat(),new Cat(),new Cat()}; for(int i = 0; i < cats.length; i++) cats[i].me(); System.out.print(Dog.getCount()+" woofs and"); System.out.println(Cat.getCount()+" mews"); System.out.println("=====>>>"+decision()); } class Counter { private static int count; public static void inc() { count++;} public static int getCount() {return count;} } class Dog extends Counter{ public Dog(){} public void wo(){inc();} class Cat extends Counter{ public Cat(){} public void me(){inc();} The Correct answer: O Nothing is output O 2 woofs and 5 mews O 2 woofs and 3 mews O 5 woofs and 5 mews

Question 37 public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new Cat(),new Cat(),new Cat()}; for(int i = 0; i < cats.length; i++) cats[i].me(); System.out.print(Dog.getCount()+" woofs and"); System.out.println(Cat.getCount()+" mews"); System.out.println("=====>>>"+decision()); } class Counter { private static int count; public static void inc() { count++;} public static int getCount() {return count;} } class Dog extends Counter{ public Dog(){} public void wo(){inc();} class Cat extends Counter{ public Cat(){} public void me(){inc();} The Correct answer: O Nothing is output O 2 woofs and 5 mews O 2 woofs and 3 mews O 5 woofs and 5 mews

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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