Regex to find multiple \n and replace with only one <br/>

Question

I've got a regex .replaceAll("(\\r\\n|\\n)", "< br />")); which replaces all \\n and replaces with < br/> .

The thing I wanted here, is to replace more than one \\n in a row by only one < br/> What would be a regex for that?

Answer 1

添加+量词，表示“一个或多个”：

.replaceAll("(\r?\n)+", "<br />"));