对list集合中对象的多个属性按一定顺序排序

Collections.sort(list, new Comparator<Student>() {
    @Override
    public int compare(Student o1, Student o2) {
        int result = 0;
        if (o1.getExta().equals("200")) {
            result = -1;
        }
        if (o2.getExta().equals("200")) {
            result = 1;
        }
        if (result != 0)
            return result;

        if (o1.getIsPriority() == 1) {
            result = -1;
        }
        if (o2.getIsPriority() == 1) {
            result = 1;
        }
        if (result != 0)
            return result;

        result = o1.getSort() - o2.getSort();
        if (result != 0)
            return result;

        result = o2.getRating() - o1.getRating();
        if (result != 0)
            return result;

        result = o2.getTiming() - o1.getTiming();
        return result;
    }
});