Java扫描仪-读取的行插入字符串了吗? [英] Java Scanner - Read line breaks in to a string?

问题描述

我有一个扫描仪，它需要用户输入直到ctrl + d，然后是while循环，它将每个单词添加到字符串中，然后打印出来，但是我想知道如何也包括\ n这样的新行指示符在字符串中只要有新行.

I have a scanner that takes user input until ctrl+d and then a while loop which adds each word to a string and then prints it, but i'd like to know how to also include the new line indicators like \n in the string wherever there is a new line.

Scanner sc = new Scanner(System.in);
System.out.println("Enter your string: ");
String x = "";

while (sc.hasNext()){
  x+=sc.next() +" ";
}
System.out.println(x);

例如，此代码将接受输入:

E.g this code would take the input:

Hello
Hello
Hello

并打印:Hello Hello Hello

and print: Hello Hello Hello

而我希望它打印类似的内容:

Whereas I would like it to print something like:

Hello\n Hello\n Hello\n

所以我可以看到每一行的结尾.

so I can see where each line ends.

推荐答案

您要打印"\ n"，为什么不打印呢?

You want to print "\n" so why don't you print it?

while (sc.hasNextLine()){
  x+=sc.nextLine() +"\n";
}

这篇关于Java扫描仪-读取的行插入字符串了吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！