如何在Java中将List<List<Object>>转换为List<List<String>>？

import java.util.ArrayList;
import java.util.List;

public class ListConversionExample {
    public static void main(String[] args) {
        List<List<Object>> originalList = new ArrayList<>();
        List<Object> innerList1 = new ArrayList<>();
        innerList1.add(1);
        innerList1.add("Hello");
        List<Object> innerList2 = new ArrayList<>();
        innerList2.add(2);
        innerList2.add("World");
        originalList.add(innerList1);
        originalList.add(innerList2);

        List<List<String>> convertedList = new ArrayList<>();
        for (List<Object> innerList : originalList) {
            List<String> convertedInnerList = new ArrayList<>();
            for (Object element : innerList) {
                convertedInnerList.add(String.valueOf(element));
            }
            convertedList.add(convertedInnerList);
        }

        // 打印转换后的列表
        for (List<String> innerList : convertedList) {
            for (String element : innerList) {
                System.out.print(element + " ");
            }
            System.out.println();
        }
    }
}