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NormalLiskov.java
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// enumerations/NormalLiskov.java
// (c)2021 MindView LLC: see Copyright.txt
// 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()
*/