class Car{ String color; int door; void drive(){ System.out.println("부릉부릉!"); } void stop(){ System.out.println("정지합니다!"); } }//end of Car class class FireEngine extends Car{ void water(){ System.out.println("물을 뿌립니다!"); } }//end of FireEngine class public class CastingTest1 { public static void main(String[] args) { Car car = null; FireEngine fe = new FireEngine(); FireEngine fe2 = null; fe.wat..