Java解析文本文件并保留换行符？ [英] Java parsing text file and preserving line breaks?

问题描述

我一直在研究如何做到这一点，并变得有点困惑，我已经尝试过与扫描仪，但似乎并没有保留换行符，我不知道如何使它确定如果行是一个越线。如果有人有任何建议，我将不胜感激。我一直在使用扫描仪类如下，但不知道如何甚至检查线是否是一个新的行。谢谢

  for（String fileName：f.list（））{
 
 fileCount ++; 
 
扫描仪sc =新扫描仪（新文件（f，fileName））; 
 int count = 0; 
 String outputFileText =; 
 
 //System.out.println(fileCount）; 
 
 String text =; 
 while（sc.hasNext（））{
 
 String line = sc.nextLine（）; 
 
 
 
 $ div $解析方案

如果你只是想读取文件，我会建议使用 $ b $ pre $ $ $ $ $ $ LineNumberReader lnr =新的LineNumberReader（新的FileReader（f））;
String line =;
while（line！= null）{
line = lnr.readLine（）;
if（line == null）{break;}
/ * do stuff * /
}


I have been researching how to do this and becoming a bit confused, I have tried so far with Scanner but that does not seem to preserve line breaks and I can't figure out how to make it determine if a line is a line break. I would appreciate if anyone has any advice. I have been using the Scanner class as below but am not sure how to even check if the line is a new line. Thanks

    for (String fileName : f.list()) {

            fileCount++;

            Scanner sc = new Scanner(new File(f, fileName));
            int count = 0;
            String outputFileText = "";

            //System.out.println(fileCount);

            String text="";
            while (sc.hasNext()) {

                String line = sc.nextLine();
            }
}

解决方案

If you're just trying to read the file, I would suggesting using LineNumberReader instead.

LineNumberReader lnr = new LineNumberReader(new FileReader(f));
String line = "";
while(line != null){
    line = lnr.readLine();
    if(line==null){break;}
    /* do stuff */
}

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