If I have a superclass, let’s call it Car, with the constructor parameters String name, String color, double wheelSize, and a subclass of this, let’s call it Truck, with the constructor parameters String name, String color, double wheelSize, and double truckBedArea, and in the subclass (Truck), I have a method called modifyCar with the paramaters Car car, String newName, String
Tag: subclass
Java Problem: Calculations in one subclass’ constructor affecting fields of another subclass’ instance
I have two abstract classes i.e. Medicine and Prescription. All code can be found at https://codeshare.io/aVAdr3 These two classes have subclasses, the class hierarchy diagram is as follows: and… …
Behavior of costructors in sub classes in Java
let’s say I have the following code: What are the outputs when I try to execute I thought it would first call the constructor of B and the constructor of B will call the constructor of A but the I don’t know which between “creating A” or “Hi” message will be shown first. The first thing invoked on a class
Java: how to have an array of subclass types?
Say I have a super class “Animal” and subclasses “Cat”, Dog, Bird”. Is there a way to have an array of subclass type rather than class instances with which I’ll be able to instantiate instances of each possible subclass? To simplify, I want this: How can I do that? Edit: I don’t want an array of instances of these subclasses,