package ch4;public class Animal {public String name;public Animal(String name){this.name = name;}public static void main(String [] args) {Animal a = new Animal("name");Cat c = new Cat("CatName", "Blue");Dog d = new Dog("Dogname", "black");System.out.println(a instanceof Animal);System.out.println(c instanceof Animal);System.out.println(d instanceof Animal);System.out.println(a instanceof Cat);a = new Dog("Dogname", "White");System.out.println(a.name);//System.out.println(a.furColor);System.out.println(a instanceof Animal);System.out.println(a instanceof Dog);Dog d2 = (Dog)a;System.out.println(d2.furColor);Cat c2;if(a instanceof Cat) {c2 = (Cat)a;System.out.println(c2.eyeColor);}//Cat c2 = (Cat)a;//System.out.println(c2.eyeColor);}}
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