import java.util.ArrayList;

 import java.util.Arrays;

 import java.util.List;

 import java.util.function.Predicate;

 import java.util.logging.Filter;

 public class 函数式接口 {

     public static void main(String[] args) {

         List<Apple> apples = Arrays.asList(new Apple("red", 10),

                 new Apple("green", 20), new Apple("red", 16));

         List<Apple> apples1 = filterApple(apples, apple -> (apple.color).equals("red") && apple.size>10);

         apples1.stream().forEach(System.out::print);

     }

     public static List<Apple> filterApple(List<Apple> list,Predicate<Apple> predicate){

         List<Apple> list1 = new ArrayList<>();

         for (Apple apple : list) {

             if(predicate.test(apple)){

                 list1.add(apple);

             }

         }

         return list1;

     }

 }

 class Apple {

     String color;

     int size;

     @Override

     public String toString() {

         return "Apple{" +

                 "color='" + color + '\'' +

                 ", size=" + size +

                 '}';

     }

     public Apple(String color, int size) {

         this.color = color;

         this.size = size;

     }

     public String getColor() {

         return color;

     }

     public void setColor(String color) {

         this.color = color;

     }

     public int getSize() {

         return size;

     }

     public void setSize(int size) {

         this.size = size;

     }

 }