使用正则表达式从字符串中提取数字

Question

I have a html code below, and with java i need to extract the numbers "25.12" as well as 8, 15, 17 etc. to store them inside array. Cant figure the proper regEx syntax.

<td align=center class="mazs" rowspan="2" bgcolor="#B5DA70">25.12</td>    
<td align=center class="mazs" rowspan="2" bgcolor="#B5DA70">8</td>
<td align=center class="mazs" rowspan="2" bgcolor="#B5DA70">15</td>
<td align=center class="mazs" rowspan="2" bgcolor="#B5DA70">17</td>
<td align=center class="mazs" rowspan="2" bgcolor="#B5DA70">18</td>
<td align=center class="mazs" rowspan="2" bgcolor="#B5DA70">20</td>

Answer 1

read line by line from the file, then:

String yourValue = line.replaceAll("<[^>]*>","");

be careful, using regex to "parse" html is not the right way. For example, if there was line breaks in your html codes, the regex replace will fail.

Answer 2

Here's how to do it in 1 line:

String[] numbers = str.replaceAll("<.*?>", " ").trim().split("\\s+");

See live demo .

Answer 3

如果所有行都是单独出现的，并且没有变化，则可以按如下所示使用非常简单的正则表达式并获取Matcher.group(1) ：

>(.*)<