java ArrayList按照枚举排序

Posted 2021-07-05 zhangjin1120

• 根据枚举的顺序排序数据：

public class EnumSortTest {
    public enum WorkType {
        A, B, C;
    }

    public static class Work {
        public String workName;
        public WorkType type;

        public Work(String workName, WorkType type) {
            this.workName = workName;
            this.type = type;
        }
    }

    public static void main(String[] args) {
        ArrayList<Work> workList = new ArrayList<>();

        workList.add(new Work("x1", WorkType.C));
        workList.add(new Work("x2", WorkType.B));
        workList.add(new Work("x3", WorkType.A));
        workList.add(new Work("x4", WorkType.C));


        Collections.sort(workList, new Comparator<Work>() {
            @Override
            public int compare(Work o1, Work o2) {
                return o1.type.compareTo(o2.type);
            }
        });

        for (Work w : workList) {
            System.out.println(w.workName);
        }
    }

}