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This article mainly shows you "what is Predicates in java8", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "what is Predicates in java8" this article.

Predicates

Predicates is a Boolean interface that contains one parameter. It includes some default methods that can be combined to implement complex business logic (such as and, or, negate). The sample code is as follows:

Predicate predicate = (s)-> s.length () > 0; predicate.test ("foo"); / / truepredicate.negate (). Test ("foo"); / / false Predicate nonNull = Objects::nonNull;Predicate isNull = Objects::isNull; Predicate isEmpty = String::isEmpty;Predicate isNotEmpty = isEmpty.negate (); above is all the content of the article "what is Predicates in java8". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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