Regex retrieve the value that matches

Hello,
I tested this snippet works:

Code:

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String reg = "[0-9]*";
String in = "test0123test";
Boolean ismat = Pattern.games(reg, in);

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but I try to retrieve the string "0123" a match that my expression "[0-9] *"
How? With this Regex how can I retrieve the value that matches. Thank you in advance

Hello,
It would be preferable to use the expression "[0-9]+"If you have lots of empty string in result

Code:

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        Matcher mth = Pattern.compiles(regex).mth(input);
        while (mth.find()) {
                System.out.System.out.println(mth.group());
        }

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Hope this will help you. If more problem then do post back.

Hello,
Thanks for your reply . I take this opportunity to ask you if you know a site where I can find regular expressions representing the dates like:

Quote:

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08/11/2009
Wed, Jul 5, 02
02002.July.04 AD 12:08 PM
etc...

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like what the class SimpleDateFormat, but unlike (of String to Date). The goal is to make a class that parses a text and return the Date. should I write the words one by one? Thank you

Hello,
But SimpleDateFormat can also return dates from String. Interested now in its parse method.

Code:

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SimpleDateDormat sdf = new SimpleDateFormat("dd / MM / yyyy");
Date date = sdf.parse("20/04/1990");

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Just try this, it is very easy with this way.

Hello,
I know this function but the problem with is that one must know the date format to be able to parse one! Now I want to parse a text (that of an email for example) and retrieve all appointments.

Quote:

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eg I'll see you Friday, January 23, 2009.

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I want the function to parse my post and finds it a date. I think this is bit semantic. Should I enter all the possible combination's? Any help on this is appreciated.

Hello,
Just have a look at the following example, this is the basic thing to do in your case

Code:

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public class SampleRegex
{
  public static void main(String[] params)
  {
      Pattern pat = Pattern.compile("(.*):(.*)");
      Matcher mat = pat.mat(params[0]);
      if(mat.matches())
      {
        System.out.print("Key:");
        System.out.println(mat.group(1));
        System.out.print("Value:");
        System.out.println(mat.group(2));
      }
      else
        System.out.print("No match");
  }
}

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