Java - 新行字符问题 [英] Java - New Line Character Issue

问题描述

我有一个类似的代码，

String str = " " ; 

while(  cond ) {

  str = str + "\n" ;

}

现在，我不知道为什么当时的打印时，输出字符串不会打印换行符。但是，当我添加任何其他字符（str = str +c）时，它正确打印。任何人都可以帮助我，如何解决这个问题以及为什么会发生这种情况？

Now, I don't know why at the time of printing, the output string is not printing the newline character. However, when I add any other character like ( str = str + "c"), it is printing properly. Can anybody help me, how to solve this problem and why this happening ?

推荐答案

看起来你正试图运行上面的代码在Windows上。那么行分隔符或新行在Windows上是不同的（'\\ n''）和Unix风格（'\ n'）。

Looks like you are trying to run the above code on Windows. Well the line separator or new line is different on Windows ( '\r\n' ) and Unix flavors ('\n').

所以，改为硬编码并使用'\ n'作为新行。尝试从系统中获取新行，例如：

So, instead of hard coding and using '\n' as new line. Try getting new line from the system like:

String newLine = System.getProperty("line.separator");
String str = " " ; 

while(  cond ) {

  str = str + newLine ;

}

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