28 lines
794 B
Java
28 lines
794 B
Java
// collections/PetMap.java
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// (c)2016 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 java.util.*;
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public class PetMap {
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public static void main(String[] args) {
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Map<String, Pet> petMap = new HashMap<>();
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petMap.put("My Cat", new Cat("Molly"));
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petMap.put("My Dog", new Dog("Ginger"));
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petMap.put("My Hamster", new Hamster("Bosco"));
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System.out.println(petMap);
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Pet dog = petMap.get("My Dog");
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System.out.println(dog);
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System.out.println(petMap.containsKey("My Dog"));
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System.out.println(petMap.containsValue(dog));
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}
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}
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/* Output:
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{My Dog=Dog Ginger, My Cat=Cat Molly, My Hamster=Hamster
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Bosco}
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Dog Ginger
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true
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true
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*/
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