用的BufferedReader阅读文本文件添加一个空格，机器人 [英] Reading text file with bufferedReader adds a whitespace, android

问题描述

我有这样的方法来从一个文本文件中的ArrayList

I have this method to get an arrayList from a text file:

private ArrayList<String[]> tempList(){
        String temp = null;
        ArrayList<String[]> tempList = new ArrayList<String[]>();
        try {
            BufferedReader bReader = new BufferedReader(new InputStreamReader(getAssets().open(getFilename())));
            while ((temp = bReader.readLine()) !=null){
            String[] value = temp.split(",");
                tempList.add(value);

            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return tempList;
    }

该文件具有只是逗号，没有空格或空行分隔字母。问题是，不知何故该列表的第一个字母在前面有一个空格。其他所有的字母都很好。

The file has just letters separated by comma with no space or empty lines. The problem is that somehow the first letter of the list has a whitespace in front of it. All other letters are fine.

下面是包含本地字母txt文件：

here is the txt file which contains a local alphabet:

Α,Β,Γ
Δ,Ε,Ζ
Η,Θ,Ι
Κ,Λ,Μ
Ν,Ξ,Ο
Π,Ρ,Σ
Τ,Υ,Φ
Χ,Ψ,Ω

任何想法有什么不好？

Any idea what is wrong?

推荐答案

它的可能的是一个零宽度的空间，一个BOM，'\\ uFEFF通常用作第一个字符（由Windows下的记事本），以纪念统一code文件本身。因此，Windows可以UTF-8和当地正常ANSI之间distringuish。

It could be a zero-width space, a BOM, '\uFEFF' normally used as first char (by NotePad under Windows) to mark Unicode files as such. So Windows can distringuish between UTF-8 and normal local ANSI.

如果编辑的第一行被复制，事后字符编码的转换过程中发生的，这将是解释。

If during editing the first line was copied, and afterwards a conversion of character encoding took place, that would be the explanation.

temp = temp.replace("\uFEFF", "");

在一般这种去除BOM是一个不错的主意。

In general this removal of BOM is a good idea.

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