java - 如何从文本文件创建树形图

我具有txt文件的以下内容：

 Some text I would like not to inclcude

#id: col1, name, money\

  2017-01-02, Michael,  200 \
  2017-01-01, Tobias,   300 \
  2017-02-03, Susan,    400 \
  2017-05-04, John,     200 \
     ...     ...    ...
 Some text I would like not to inclcude

我想创建一个Treemap并将col1作为我的键：

    import java.io.*;
    import java.util.*;


    class earnings
    {
        public static void main(String[] args) throws FileNotFoundException {

            Scanner scanner = new Scanner(new FileReader("example.txt"));

            TreeMap<String, String> map = new TreeMap<String, String>();

            while (scanner.hasNextLine()) {
                String[] columns = scanner.nextLine().split("\t");
                map.put(columns[0],columns[0]);
            }

            System.out.println(map);
        }
    }

用Some text I would like not to inclcude输出：

    {=,  2017-01-01,  Tobias,   300 \= 2017-01-01,  Tobias,   300 \,
 2017-01-02, Michael,  200 \= 2017-01-02, Michael,  200 \,  2017-02-03,
 Susan,    400 \= 2017-02-03,  Susan,    400 \,  2017-05-04,  John,
 200 \= 2017-05-04,  John,     200 \,  Some text I would like not to
 inclcude= Some text I would like not to inclcude, Some text I would
 like not to inclcude=Some text I would like not to inclcude}

没有Some text I would like not to inclcude的输出仍然有一些重复：

    {=,  2017-01-01,  Tobias,   300 \= 2017-01-01,  Tobias,   300 \,
   2017-01-02, Michael,  200 \= 2017-01-02, Michael,  200 \,  2017-02-
  03,  Susan,    400 \= 2017-02-03,  Susan,    400 \,  2017-05-04,
  John,     200 \= 2017-05-04,  John,     200 \}

我如何设法创建一个具有Some text I would like not to inclcude并看起来如下的树图：

{ 2017-01-01, Tobias,  300 \ 2017-01-02, Michael, 200 \ 2017-02-03, Susan, 400 \  2017-05-04,  John,     200 \}

或至少没有重复

最佳答案

之所以将不需要的数据放入集合中，是因为文件输入很复杂，并且需要处理规则来确定文件的哪些部分有效。您已声明自己具有启动触发器和停止触发器。

处理状态为：


还没好
就绪（到达启动触发器后）-在此状态下，读入您的地图
完成（到达停止触发器后）


目前尚不清楚什么值输入地图（关键是日期）。目前，我已将名称和金钱值串联起来：如果不正确，请解决此问题。注意，您需要使用“，”分割字符串。

此代码管理这些状态，并确保进入Map的所有数据均为有效数据（在开始和停止触发器之间）

public class Earnings {

final static String START_TRIGGER = " Some text I would like not to inclcude";
final static String STOP_TRIGGER = " Some text I would like not to inclcude";

enum ProcessingState {
    NOT_READY,
    READY,
    FINISHED;
}

public static void main(String[] args) throws FileNotFoundException {

    Scanner scanner = new Scanner(new FileReader("Example.txt"));

    TreeMap<String, String> map = new TreeMap<String, String>();

    ProcessingState processingState = ProcessingState.NOT_READY;

    while (scanner.hasNextLine() && processingState != ProcessingState.FINISHED) {

        String lineToProcess = scanner.nextLine();

        if (processingState == ProcessingState.READY && lineToProcess.startsWith(STOP_TRIGGER))
            processingState = ProcessingState.FINISHED;

        if (processingState == ProcessingState.READY) {
            String[] columns = lineToProcess.split(",");
            map.put(columns[0],columns[1]+", "+columns[2]);
        }

        if (processingState == ProcessingState.NOT_READY && lineToProcess.startsWith(START_TRIGGER))
            processingState = ProcessingState.READY;


    }

    System.out.println(map);
}

}

我对您的数据进行了测试，结果是：

{  2017-01-01= Tobias,    300 \,   2017-01-02= Michael,   200 \,   2017-02-03= Susan,     400 \,   2017-05-04= John,      200 \}

关于java - 如何从文本文件创建树形图，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/48590964/