JAva Streamストリームの条件フィルタによる統計個数

統計リストオブジェクトの性別が女性の個数

 public static void main(String[] args) {
        List list = new ArrayList();
        list.add(new User("   ",23," "));
        list.add(new User("   ",26," "));
        list.add(new User("  ",24," "));
        list.add(new User("   ",26," "));
        //          
        //list.stream().filter(s->s.getName()equals("0")).count()
        long count = list.stream().filter(s -> s.getSex().equals(" ")).count();
        System.out.println(count);
    }