Predicate not method

📝 Java

amysmith435 · Level 5 · 28/05/2026

This snippet creates a negated predicate using Predicate.not() to easily invert a filtering condition.

Java

import java.util.function.Predicate;
import java.util.List;
import java.util.stream.Collectors; public class Example { public static void main(String[] args) { Predicate<String> isEmpty = String::isEmpty; Predicate<String> isNotEmpty = Predicate.not(isEmpty); List<String> strings = List.of("hello", "", "world"); List<String> nonEmpty = strings.stream() .filter(isNotEmpty) .collect(Collectors.toList()); System.out.println(nonEmpty); }
}

Predicate not method

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