JAVA | 抽象过滤

public interface FruitFilter<T> {
    boolean filter(T t);
}

public static void main(String[] args) {
    List<Apple> apples = Arrays.asList(
        new Apple("green", 150, true),
        new Apple("white", 200, false),
        new Apple("blue", 100, true)
    );
    List<Apple> filter = filter(apples, apple -> "green".equals(apple.getColor()));
    filter.forEach(System.out::println);
}
 public static <T> List<T> filter(List<T> list, FruitFilter<T> fruitFilter) {
     List<T> result = new ArrayList<>();
     for (T t : list) {
         if (fruitFilter.filter(t)) {
             result.add(t);
         }
     }
     return result;
 }