Sandbox::https://github.com/boringbyte/BroCodeJavaCourse/blob/master/src/DynamicPolymorphism/Main.java

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package DynamicPolymorphism;

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

// dynamic --> after compilation (during runtime)

// A corvette is a corvette, and a car, and a vehicle, and an object

Scanner scanner = new Scanner(System.in);

Animal animal;

System.out.println("What animal do you want?");

System.out.println("(1=dog) or (2=cat): ");

int choice = scanner.nextInt();

if (choice == 1) {

animal = new Dog();

animal.speak();

} else if (choice == 2) {

animal = new Cat();

animal.speak();

} else {

animal = new Animal();

System.out.println("That choice was invalid");

animal.speak();

}