请问Java代码中如何给list中相同的元素各自分配递增的序号？（如下图所示）

Question

Answer 1

 import java.util.*;
import java.util.Map.Entry;
import java.util.stream.*;

class Untitled {


    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<String>();
        list.add("1071");
        list.add("1071");
        list.add("1071");
        list.add("1071");
        list.add("1072");
        list.add("1072");
        list.add("1071");
        list.add("1070");
        Map<String, List<String>> result = list.stream()
            .collect(Collectors.groupingBy(x -> x));
        for (Entry<String, List<String>> vo : result.entrySet())
        {
            int i = 0;
            for (String s : (List<String>)vo.getValue())
            System.out.println(s + "," + (++i));
        }
    }
}