OnJava8-Examples/enumerations/NormalLiskov.java at master · CSapprenticeWT/OnJava8-Examples · GitHub

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// enumerations/NormalLiskov.java

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

import java.util.stream.*;

interface LifeForm {

String move();

String react();

}

class Worm implements LifeForm {

@Override public String move() {

return "Worm::move()";

}

@Override public String react() {

return "Worm::react()";

}

class Giraffe implements LifeForm {

@Override public String move() {

return "Giraffe::move()";

}

@Override public String react() {

return "Giraffe::react()";

}

public class NormalLiskov {

public static void main(String[] args) {

Stream.of(new Worm(), new Giraffe())

.forEach(lf -> System.out.println(

lf.move() + " " + lf.react()));

}

/* Output:

Worm::move() Worm::react()

Giraffe::move() Giraffe::react()