java8 lambda集合排序

1.使用Comparator.comparing按照动物年龄升序/降序排序

public class Demo {
    public static void main(String[] args) {

        ArrayList<Animal> listAnimals = new ArrayList<>();
        listAnimals.add(new Animal().setName("狗").setAge(2));
        listAnimals.add(new Animal().setName("猫").setAge(3));
        listAnimals.add(new Animal().setName("老鼠").setAge(1));
        listAnimals.sort(Comparator.comparing(Animal::getAge));
        listAnimals.forEach(System.out::println);
//        降序排序
//        listAnimals.sort(Comparator.comparing(Animal::getAge).reversed());
    }
}

标签：setName,listAnimals,comparing,add,Animal,new,排序,java8,lambda
来源： https://blog.csdn.net/m0_59259076/article/details/122791147