通过在java中放入列表来设置和获取数据循环

我有一个for循环，在这个循环中，我可以将数据发送到不同类中的其他方法

UserManagerImpl.java

for (User user: userList) {
                surveyModel survey = new SurveyModel();
                survey.setSurveyData(Id, comment, serveyScore, grade);
            }

在另一个类中，我设置和get来创建数据列表，然后希望通过get方法获取它

surveyModel.java

public class SurveySentimentModel {
    public static String delimiter = "|||"; 
    private List scores = new ArrayList();
    private List negativeData = new ArrayList();
    private List PositiveData = new ArrayList();


    public void setSurveyData(String Id, String comment, double Score, String grade) {
        //want to add score to scores list
        //if grade positive add to positive list or else negative after delimiting  
    }
        public double getTotalScore() {
        //calculate the sum of scores
        return totalScore;
    }


public String getTotalSentimentgrade() {
        if (totalScore> 0) {
            return "Positive";
        }
        return "Negative";
    }

    public List getSurveyData() {
        //Want to merge list - first negative and then positive
        return new ArrayList();
    }
}

private String grade;
private Number Score;
private String Id;
private String comment;

public SurveyModel(String Id, String comment, double Score, String grade) {
    this.grade= grade;
    this.Score= Score;
    this.comment = comment;
    this.Id = Id;
}
public SurveyModel() {
    // TODO Auto-generated constructor stub
}

SurveyModel.java

public class SurveySentimentModel {
    public static String delimiter = "|||"; 
    private List scores = new ArrayList();
    private List negativeData = new ArrayList();
    private List PositiveData = new ArrayList();


    public void setSurveyData(String Id, String comment, double Score, String grade) {
        //want to add score to scores list
        //if grade positive add to positive list or else negative after delimiting  
    }
        public double getTotalScore() {
        //calculate the sum of scores
        return totalScore;
    }


public String getTotalSentimentgrade() {
        if (totalScore> 0) {
            return "Positive";
        }
        return "Negative";
    }

    public List getSurveyData() {
        //Want to merge list - first negative and then positive
        return new ArrayList();
    }
}

private String grade;
private Number Score;
private String Id;
private String comment;

public SurveyModel(String Id, String comment, double Score, String grade) {
    this.grade= grade;
    this.Score= Score;
    this.comment = comment;
    this.Id = Id;
}
public SurveyModel() {
    // TODO Auto-generated constructor stub
}

//接球手和接球手

在这里我想

1.) Add score to scores list 
2.) want to add graddes to list by negative first with delimiter then positive.
3.) want to get total score.

我怎样才能达到我的要求。我是java新手，请在这方面帮助我。

这里有一个建议：

这是模型类：

    public class SurveySentimentModel {
        public static String delimiter = "|||"; 
        private List<SurveyModel> scores = new ArrayList();
        private List<SurveyModel> negativeData = new ArrayList();
        private List<SurveyModel> positiveData = new ArrayList();


        public void setSurveyData(String Id, String comment, double score, String grade) {
            SurveyModel survey =  new SurveyModel(id, comment, score, grade );
            scores.add(survey)
            if(score >= 0){
              positiveData.add(survey);
            }else{
              negativeData.add(survey);
            }
        }
        public double getTotalScore() {
            double sum = 0;
            for(SurveyModel s: scores){
                sum += s.getScore();
            }
            return sum;
        }
        public List getSurveyData() {
            List<SurveyModel> joined = new ArrayList(negativeData);
            joined.addAll(positiveData)
            return joined;
        }
    }

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请告诉我们你试过什么。@Bill F给定的布局思想，输入查询已完成。但我不知道如何通过将其放入列表中来实现。以下三件事我没有按照您的建议得到：1.我无法使用scores.stream.mapToDoubleSurveyModel:：getScore.sum；它显示了这一行中的错误我正在使用java 7。2.我无法在getsurveyData中获取作为返回的列表，因为addallpositiveData，这迫使它将返回类型更改为boolean。3.我想第一次在positiveData列表之前添加分隔符。stream是java 8+我将其更改为与java 7兼容的循环。“我不明白您在positiveData之前使用分隔符是什么意思。@Raphael。我又添加了一个arraylist，我正在合并三个列表，在getsurveyData中，通过这个列表MergedSurveyData=new arraylist；mergedSurveyDataList.addAllnegativeData；mergedSurveyDataList.addAllnuetralData；mergedSurveyDataList.addAllpositiveData；但每次列表大小都会增加0倍。如何仅获取唯一的列表元素