Java:基本议程程序，人们可以在其中操纵他们的事件，并根据需要获得当前一周或一天的事件通知

Question

我以为我可以制作这个简单的程序，而不需要寻求人类的帮助并浪费他们的时间，但我的“想法”在这里被绊倒了。到目前为止，谷歌一直在帮助我，但不幸的是，这是我所能得到的。因此，我们非常感谢任何帮助，在开始之前请注意，我刚刚开始接触 Java。

正如标题所说，这是一个类似于 Google Keep 的迷你议程程序，我们可以这么说，用户会看到一个基于控制台的菜单，如下所示:

1. 注册个人 Activity
2. 当天或本周的 Activity
3. 删除 Activity
4. 编辑 Activity
5. 关闭议程

当他/她转到选项 2 时，程序应正确列出事件。目前，它仅显示所有内容。实际上，这是 main 中的代码:

public class Agenda
{
    public static void main(String[] args) throws IOException
    {
        Person person = new Person();
        Event event = new Event();
        Scanner sc1 = new Scanner(System.in);
        Scanner sc2 = new Scanner(System.in);

        //System.out.println(date.toString());
        //System.out.println(hourMinutesSeconds.toString());



        boolean agenda = true;
        while (agenda)
        {
            System.out.println("Menu");
            System.out.println("====");
            System.out.println("1. Register personal events");
            System.out.println("2. Current week/day events");
            System.out.println("3. Delete events");
            System.out.println("4. Edit events");
            System.out.println("5. Close agenda");
            int choice = sc1.nextInt();
            switch (choice)
            {
                 case 1:
                 {   
                      int exit = 1;
                      String save = "";
                      while (exit == 1)
                      {    
                           System.out.println("Register personal events");
                           System.out.println("=========================");

                           System.out.println("Your name:");
                           person.setName(sc2.nextLine());

                           System.out.println("Person phone number:");
                           person.setPhoneNumber(sc2.nextLine());

                           System.out.println("Add details about someone's anniversary(optional: schedule a date in the format as follows (hour/minutes/seconds day/month/year))");
                           event.setBirthDay(sc2.nextLine());


                           System.out.println("Add details about the conference(optional: schedule a date in the format as follows (hour/minutes/seconds day/month/year))");
                           event.setMeeting(sc2.nextLine());

                           System.out.println("Add details about the debate(optional: schedule a date in the format as follows (hour/minutes/seconds day/month/year))");
                           event.setDebate(sc2.nextLine());


                           System.out.println("Save the event?yes\\no");
                           save = sc2.nextLine();
                           if (save.equals("yes"))
                           {
                               String fileName = person.toString().substring(6, person.toString().indexOf("\n")) + ".txt";
                               EventSaver.saveToFile(person.toString() + event.toString(), fileName);
                           }


                           System.out.println("Do you wish to add more events? 1-Yes, 0-No");
                           exit = sc1.nextInt();

                      }
                      break;
                 }

                 case 2:
                 {

                      String[] events = EventSaver.readEvents();
                      for (int i = 0; i < events.length; i++)
                      {

                          System.out.println(events[i]);

                      }
                      break;
                 }

                 case 3:
                 {
                      break;

                 }

                 case 4:
                 {
                      break;

                 }

                 case 5:
                 {
                     agenda = false;
                     sc1.close();
                     sc2.close();
                     System.out.println("Agenda closed");
                     break;
                 }
                 default:
                 {
                     throw new IllegalArgumentException("Invalid option...\ngoing back to main menu");
                 }

            }

        }
    }
}

EventSaver 类:

public class EventSaver 
{
    private static String FILENAME = "D:\\my_stuff\\some_dir\\some_dir\\Workspace\\EventAgenda\\src\\";

    public static void saveToFile(String content, String fileName)
    {
        BufferedWriter bw = null;
        FileWriter fw = null;
        try 
        {
             fw = new FileWriter(FILENAME + fileName);
             bw = new BufferedWriter(fw);
             bw.write(content);

             System.out.println("Event saved");

        } 
        catch (IOException e) 
        {
             e.printStackTrace();

        } 
        finally 
        {
             try 
             {
                  if (bw != null)
                  {
                       bw.close();
                  }
                  if (fw != null)
                  {
                       fw.close();
                  }
             } 
             catch (IOException ex) 
             {
                  ex.printStackTrace();
             }
        }
    }


    public static String[] readEvents() throws IOException
    {
        File folder = new File("D:\\my_stuff\\some_dir\\some_dir\\Workspace\\EventAgenda\\src\\");
        File[] listOfFiles = folder.listFiles();

        String fileContents = "";
        String[] content;
        for (int i = 0; i < listOfFiles.length; i++)
        {
            File file = listOfFiles[i];
            if (file.isFile() && file.getName().endsWith(".txt"))
            {

                fileContents += FileUtils.readFileToString(file, "UTF-8") + "\n";

            }
        }
        content = fileContents.split("\n");
        return content;

保存事件后，属于特定用户的 .txt 文件如下所示:

Name: Bob
Phone Number: 0741123458
Birthday: Elena, at LongDrinks(19:00:00 19/06/2017)
Conference: Current stage of the project SMFA(20:00:00 24/06/2017)
Debate: The meaning of this world(21:30:00 19/06/2017)

我尝试获取这些日期并以某种方式比较它们，但使用此代码却徒劳无功:

public class SetEvents {

    if (event.toString().indexOf("(") != -1)
    {
          String[] eventTimeAndDate = (event.toString().substring(event.toString().indexOf("(") + 1, event.toString().indexOf(")"))).split(" ");
          String[] eventTime = eventTimeAndDate[0].split(":");
          String[] eventDate = eventTimeAndDate[1].split("/");

          Time hourMinutesSeconds = new Time();
          hourMinutesSeconds.setHour(Integer.parseInt(eventTime[0]));
          hourMinutesSeconds.setMinute(Integer.parseInt(eventTime[1]));
          hourMinutesSeconds.setSecond(Integer.parseInt(eventTime[2]));

          MyDate date = new MyDate(Integer.parseInt(eventDate[2]), Integer.parseInt(eventDate[1]), Integer.parseInt(eventDate[0]));              
    }

但是有了这个，我只能从文件中提取第一个日期出现的情况，并且我需要获取所有出现的情况，使用其他类以某种方式比较它们，以查找当前周和天的事件，并在选择选项 2 时正确显示它们。我可以做吗？谢谢

Answer 1

在 Java 中还有第二个 indexOf 方法

indexOf(String str, int fromIndex)

Returns the index within this string of the first occurrence of the specified substring, starting at the specified index.

(参见:https://docs.oracle.com/javase/7/docs/api/java/lang/String.html)

所以你可以这样:

int startAt = 0;
String evt = event.toString();
while (evt.indexOf("(", startAt) != -1){

      startAt = indexOf("(", startAt)+2;

      String[] eventTimeAndDate = (event.toString().substring(event.toString().indexOf("(") + 1, event.toString().indexOf(")"))).split(" ");
      String[] eventTime = eventTimeAndDate[0].split(":");
      String[] eventDate = eventTimeAndDate[1].split("/");

      Time hourMinutesSeconds = new Time();
      hourMinutesSeconds.setHour(Integer.parseInt(eventTime[0]));
      hourMinutesSeconds.setMinute(Integer.parseInt(eventTime[1]));
      hourMinutesSeconds.setSecond(Integer.parseInt(eventTime[2]));

      MyDate date = new MyDate(Integer.parseInt(eventDate[2]), Integer.parseInt(eventDate[1]), Integer.parseInt(eventDate[0]));              
    }

编辑:没有测试它，但在这个 while 循环中你应该能够提取你得到的所有日期