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Добавлен Результат выполнения кода

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Arthur 2020-02-21 17:36:12 +03:00 committed by Enchased Horse
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@ -644,6 +644,26 @@ class CreditCard {
}
```
Результат выполнения кода:
```
adding to HM
hashCode = 1285631513
adding to IHM
before modifying keys
hashCode = 1285631513
Does VISA card exists in HashMap? Yes
Does VISA card exists in IdenityHashMap? Yes
after modifying keys
hashCode = 791156485
Does VISA card exists in HashMap? No
Does VISA card exists in IdenityHashMap? Yes
cardToExpiry.containsKey
hashCode = 791156485
false
cardToExpiryIdenity.containsKey
true
```
[к оглавлению](#java-collections-framework)
## В чем разница между `HashMap` и `WeakHashMap`? Для чего используется `WeakHashMap`?