java8学习:用流收集数据
内容来自《 java8实战 》,本篇文章内容均为非盈利,旨为方便自己查询、总结备份、开源分享。如有侵权请告知,马上删除。书籍购买地址:java8实战 下面我们将采用这样一个实体类 @Data public class Dish { private final String name; private final boolean vegetarian; //是否是素食 private final int calories; //卡路里 private final Type type; //类型 public enum Type{ MEAT,FISH,OTHER; } public Dish(String name, boolean vegetarian, int calories, Type type) { this.name = name; this.vegetarian = vegetarian; this.calories = calories; this.type = type; } } 上面是一个菜单的一个实体类,下面我们添加到list中 List<Dish> me...