abstract class Animal { private static int count; public static void increment() { count++; } public static int getCount() { return count; } abstract void noise(); } class Dog extends Animal { public Dog() {}; public void noise() { System.out.println("Woof"); increment(); } } class Cat extends Animal { public Cat() {}; public void noise() { System.out.println("Meow"); increment(); } } public class Counter{ public static void main(String[] args) { Animal[] a = {new Dog(), new Cat(), new Cat(), new Dog(), new Dog()}; for (int i = 0; i < a.length; i++) a[i].noise(); System.out.println(Dog.getCount() + " woofs and " + Cat.getCount() + " meow"); } } なんかおかしいところありますか？
