package test;

import entity.Animal;

import java.util.Arrays;

import java.util.List;

import java.util.function.BiFunction;

import java.util.stream.Collectors;

public class AnimalTest {

public static void main(String[] args) {

Animal animal0 = new Animal("Dog", 1);

Animal animal1 = new Animal("Cat", 1);

Animal animal2 = new Animal("Person", 2);

List<Animal> animals = Arrays.asList(animal0, animal1, animal2);

List<Animal> list = animals.stream().filter((animal) -> animal.getNum() > 0).collect(Collectors.toList());

//打印结果 1 1 2

list.forEach(i -> System.out.println(i.getNum()));

}

public static List<Animal> getByAgeByfunction(int num,

List<Animal> animals,

BiFunction<Integer, List<Animal>, List<Animal>> biFunction) {

return biFunction.apply(num, animals);

}

}