java8新特性 Stream流之根据条件过滤统计个数

统计list中性别为女的个数

 public static void main(String[] args) {
		List<User> list = new ArrayList<User>();
		list.add(new User("李师师",23,"女"));
		list.add(new User("陈圆圆",26,"女"));
		list.add(new User("潘安",24,"男"));
		list.add(new User("赵飞燕",26,"女"));
		//统计为性别为女的个数
		//list.stream().filter(s->s.getName()equals("0")).count()
		long count = list.stream().filter(s -> s.getSex().equals("女")).count();
		System.out.println(count);
}