27 lines
792 B
Java
27 lines
792 B
Java
// typeinfo/PetCount4.java
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// (c)2017 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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import typeinfo.pets.*;
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import onjava.*;
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public class PetCount4 {
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public static void main(String[] args) {
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TypeCounter counter = new TypeCounter(Pet.class);
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Pets.stream()
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.limit(20)
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.peek(counter::count)
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.forEach(p -> System.out.print(
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p.getClass().getSimpleName() + " "));
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System.out.println("\n" + counter);
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}
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}
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/* Output:
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Rat Manx Cymric Mutt Pug Cymric Pug Manx Cymric Rat
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EgyptianMau Hamster EgyptianMau Mutt Mutt Cymric Mouse
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Pug Mouse Cymric
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{Dog=6, Manx=7, Cat=9, Rodent=5, Hamster=1, Rat=2,
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Pug=3, Mutt=3, Cymric=5, EgyptianMau=2, Pet=20,
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Mouse=2}
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*/
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