Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Objects;
import java.util.function.Predicate;

public class Main {
    public static void main(String... args) {
        Predicate<Boolean> nonNull = Objects::isNull;
        System.out.println(nonNull.test(true));
        System.out.println(nonNull.negate().test(false));
    }
}