从文件中过滤数据

发布于 2025-01-04 20:56:49 字数 575 浏览 1 评论 0原文

我在下面的文本文件中有大约 50 行数据，其中包含以下

Date= 1/1/2012 (dd:mm:yyyy) Time= 1:44:10 (hh:mm:ss)
Recording Started at 1:44:10 (hh:mm:ss)
X-Value = -0.525108, Y-Value = 7.746691, Z-Value = 5.863008, Timestamp(milliseconds) = 23001
X-Value = -0.755030, Y-Value = 7.861651, Z-Value = 6.016289, Timestamp(milliseconds) = 23208
X-Value = -0.448467, Y-Value = 8.551417, Z-Value = 4.943320, Timestamp(milliseconds) = 23401
Recording Stopped at 1:44:11 (hh:mm:ss)

内容我现在使用的代码使用 BufferedReader 读取文件的每一行，但我真正想做的是提取 Y 值、Z 值和每行的时间戳（毫秒）值然后将其存储在某种数据结构中？这样做的最好方法是什么？

原文

I've got around 50 lines of data in a text file below containing the following

Date= 1/1/2012 (dd:mm:yyyy) Time= 1:44:10 (hh:mm:ss)
Recording Started at 1:44:10 (hh:mm:ss)
X-Value = -0.525108, Y-Value = 7.746691, Z-Value = 5.863008, Timestamp(milliseconds) = 23001
X-Value = -0.755030, Y-Value = 7.861651, Z-Value = 6.016289, Timestamp(milliseconds) = 23208
X-Value = -0.448467, Y-Value = 8.551417, Z-Value = 4.943320, Timestamp(milliseconds) = 23401
Recording Stopped at 1:44:11 (hh:mm:ss)

The code I have right now uses a BufferedReader reading every line of the file but what I really want to do is extract the Y-Value, Z-Value and Timestamp(milliseconds) values from each line and then store it in some sort of data structure? What would be the best way of doing this?

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一笑百媚生 2025-01-11 20:56:49

使用 String.split()，使用逗号和空格作为分隔符，然后使用=作为分隔符分割结果数组元素。然后，将生成的数组元素添加到 ArrayList< /a>.

String str = "X-Value = -0.525108, Y-Value = 7.746691, Z-Value = 5.863008, Timestamp(milliseconds) = 23001
";
String[] data_array = str.split(", ");    
ArrayList<String> Y_Value = new ArrayList<String>();
Y_Value.add(data_array[1].split("= ")[1]);

Use String.split() with comma and white-spae as a delimiter and than split the resultant array element with = as a delimiter. Than, add the resultant array elements into an ArrayList.

String str = "X-Value = -0.525108, Y-Value = 7.746691, Z-Value = 5.863008, Timestamp(milliseconds) = 23001
";
String[] data_array = str.split(", ");    
ArrayList<String> Y_Value = new ArrayList<String>();
Y_Value.add(data_array[1].split("= ")[1]);

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