如何对ArrayList进行排序包括Date和String？

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;

public class ArrayListSortExample {
    public static void main(String[] args) {
        ArrayList<Object> list = new ArrayList<>();
        list.add("Apple");
        list.add("Banana");
        list.add("Date");
        list.add(new Date(2022, 1, 1));
        list.add(new Date(2021, 1, 1));

        // 对ArrayList进行排序
        Collections.sort(list, new Comparator<Object>() {
            @Override
            public int compare(Object o1, Object o2) {
                if (o1 instanceof Date && o2 instanceof Date) {
                    return ((Date) o1).compareTo((Date) o2);
                } else if (o1 instanceof String && o2 instanceof String) {
                    return ((String) o1).compareTo((String) o2);
                } else {
                    throw new IllegalArgumentException("Unsupported types for comparison");
                }
            }
        });

        // 输出排序后的ArrayList
        for (Object obj : list) {
            System.out.println(obj);
        }
    }
}