Java 8 Functional Interfaces Java Java API
Interface:
java.util.function.BiPredicate<T,U>
Method:
default BiPredicate<T,U> negate()
Returns a predicate that represents the logical negation of this predicate.
Examples
package com.logicbig.example.bipredicate;
import java.util.function.BiPredicate;
public class NegateExample {
public static void main(String... args) { BiPredicate<String, String> startsWith = String::startsWith; BiPredicate<String, String> biPredicate = startsWith.negate(); boolean b = biPredicate.test("enough is enough", "enough"); System.out.println(b); b = biPredicate.test("she is tall", "tall"); System.out.println(b); } }
Outputfalse true
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