Return a Boolean if the Optional Is Empty
April 29, 2019
Beginning with JDK 11, we can return a boolean if the Optional is empty via Optional#isEmpty(): public boolean bookIsEmpty(long id) { Optional book = // code that fetches the book
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Beginning with JDK 11, we can return a boolean if the Optional is empty via Optional#isEmpty(): public boolean bookIsEmpty(long id) { Optional book = // code that fetches the book