List

1. 过滤数组中分数为1的数据

   List<MutualEvaluation> one = (List)((List)disSatisfiedList)
    .stream().filter((x) -> x.getScore() == 1;})
    .collect(Collectors.toList());

Map

1. 按照分数划分区组，合格/不合格

   // 根据得分划分成map，得分大于4的为true，否则为false
   Map<Boolean, List<MutualEvaluation>> partMap = (Map)((List)mutualEvaluationList).stream().collect(Collectors.partitioningBy((x) -> {
            return x.getScore() >= 4;
        }));