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统计list对象中为性别为女的个数
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);
}
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转播
