📄 cat.java
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import java.util.*;public class Cat extends Animal { public Cat() { super.setColor("white"); } public static void hide() { System.out.format("The hide method in Cat.%n"); } public void override() { System.out.format("The override method in Cat.%n"); } // Returns a litter of cats public Collection<Cat> getLitter(int size) { ArrayList<Cat> litter = new ArrayList<Cat>(size); for (int i = 0; i < size; i++) litter.add(i, new Cat()); return litter; } public static void main(String[] args) { Cat myCat = new Cat(); Animal myAnimal = myCat; Animal.hide(); myAnimal.override(); }}
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