小编san*_*011的帖子

我正在制作一个调度（调度员？）程序。当我设法创建“addReport”方法时，我在显示所有报告（遍历地图）时遇到了问题。我认为每次我尝试添加新元素时，它们都会被替换，因为标识符 (UUID) 是相同的。你怎么看，或者可能是不同的东西？

public class Dispatching {
    private String identificator;
    private Map<String, Report> reportMap;

    public Dispatching() {
        this.identificator = UUID.randomUUID().toString();
        this.reportMap = new HashMap<>();
    }

    void addReport(String message, ReportType type) {
        reportMap.put(identificator, new Report(type, message, LocalTime.now()));
    }

    void showReports() {
        for (Map.Entry element : reportMap.entrySet()) {
            System.out.println("uuid: " + element.getKey().toString()
                    + " " + element.getValue().toString());
        }
    }

}

public class Report {
    ReportType reportType;
    String reportMessage;
    LocalTime reportTime;


    public Report(ReportType reportType, String reportMessage, LocalTime reportTime) {
        this.reportType = reportType;
        this.reportMessage …