Question

我有一些包含多个标点符号的文本文件，所以我需要将它们减少为单个标点符号。

以下是一些示例文本：

They are working in London..... he is a Java developer !!!!! they are playing------ She is working_______

这是必需的输出：

They are working in London.he is a Java developer !they are playing- She is working_

我需要一些Java正则表达式的帮助。

由于

Answer 1

使用反向引用（\1+）来匹配重复的字符。

请尝试以下操作：

String text = "They are working in London..... he is a Java developer !!!!! they are playing------ ---- ---- She is working_______";
String replaced = text.replaceAll("(?:([-.!_])\\1+\\s*)+", "$1");
System.out.println(replaced);

打印

They are working in London.he is a Java developer !they are playing-She is working_

Answer 2

你可以试试这个

   String str = "They are working in London..... he is a Java developer !!!!! they are playing-----She is working_______";
   String newStr = str.replaceAll("([|\\-|\\.|\\!|\\_])\\1+", "$1");
   System.out.println(newStr);

直播Demo

Out put

They are working in London. he is a Java developer ! they are playing-She is working_

Answer 3

尝试这样的事情：

/（[;？！-_]）{2} / $ 1 /

如何从java中的文本文件中减少多个标点符号

3 个答案: