23 lines
606 B
Java
23 lines
606 B
Java
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// enumerations/PetPatternMatch.java
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// (c)2021 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// {NewFeature} Preview in JDK 17
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// Compile with javac flags:
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// --enable-preview --source 17
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import java.util.*;
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public class PetPatternMatch {
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static void careFor(Pet p) {
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switch(p) {
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case Dog d -> d.walk();
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case Fish f -> f.changeWater();
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case Pet sp -> sp.feed();
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};
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}
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static void petCare() {
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List.of(new Dog(), new Fish())
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.forEach(p -> careFor(p));
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}
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}
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