java - 将数组列表中匹配后的所有内容存储在字符串中

Question

我有一个方法，它获取一个带有 txt 文件路径作为参数的文件。缓冲读取器将一些行读入数组列表。到目前为止一切顺利，但现在我需要将特定元素之后的每个元素存储在字符串中。

示例:我在这个数组列表中有一个元素，在我点击这个元素后，它是“=”，我想将该元素之后的每个元素存储到一个字符串中。

我尝试了循环和 if 语句，但找不到解决方案。

    //Just for debugging purpose at some point i want to store a temperature in here and return it to Main
    int temp = 1;

    List<String> sensor_Daten = new ArrayList<>();

    try
    {
        BufferedReader reader =  new BufferedReader(new   FileReader(path));
        String line;

        while ((line = reader.readLine()) != null)
        {
            sensor_Daten.add(line);
        }
    }
    catch (IOException IOEx)
    {

    }

    return temp;

Answer 1

应该不会太难:

BufferedReader reader =  new BufferedReader(new   FileReader(path));
String line;
boolean isWordFound = false;
while ((line = reader.readLine()) != null)        {  

    // add the line in the list if the word was found       
    if (isWordFound()){
      sensor_Daten.add(line);
    }

    // flag isWordFound to true when the match is done the first time
    if (!isWordFound && line.matches(myRegex)){
      isWordFound = true;
    } 
}

顺便说一句，当你应该关闭流时，你不会关闭它。try-with-resource 语句会为您完成此操作。所以你应该喜欢这种方式。
概括地说:

BufferedReader reader = ...;
try{
    reader =  new BufferedReader(new   FileReader(path));
}
finally{
  try{
    reader.close();
   }
  catch(IOException e) {...}
}

应该只是:

try(BufferedReader reader = new BufferedReader(new FileReader(path))){
    ...
}