Null object pattern: Difference between revisions

Revision as of 00:24, 20 December 2022

Revision as of 13:18, 21 December 2022

Line 362:

<syntaxhighlight lang="java">

public interface Animal {

void makeSound() ;

}

Line 373:

public class NullAnimal implements Animal {

public void makeSound() {

// silence...

}

}

Line 417:

function makeAnimalFromAnimalType(string $animalType): Animal

{

switch ($animalType) {

case 'dog':

return new Dog();