how can i extract the content of an ISO-8601 with regex and convert the time into numeric in this case using java -

this text :

<meta itemprop="duration" content="pt4m32.80000000000001s">  

i want extract pt4m32.80000000000001s , convert numeric. had tried integer.parseint() gives me numberformatexception. please.

it depends on number want extract, , if context fixed. say, have pt4m before double value of 32.80000000000001 want extract.

here sample program:

import java.util.regex.*; public class helloworld{       public static void main(string []args){         string str = "pt4m32.80000000000001s";         pattern ptrn = pattern.compile("(?<=pt4m)[\\d.]+");         matcher matcher = ptrn.matcher(str);         if (matcher.find()) {            system.out.println(matcher.group(0));            double fl = double.parsedouble(matcher.group(0));            system.out.println(fl);         }      } } 

output:

32.80000000000001                                                                                                                                                    32.80000000000001