Home/ Questions/Q 6560695
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-25T13:29:36+00:00

I am trying to obtain the string that my matcher is able to find

  • 0

I am trying to obtain the string that my matcher is able to find using my provided expression. Something like this..

if(matcher.find())
    System.out.println("Matched string is: " + ?);

What would be the appropriate code for this? According to Oracle the 

matcher.group();

method returns only the provided input same as 

matcher.group(0);

Thanks in advance..

Edit:

Example follows below: 

private static String fileExtensionPattern = ".*<input type=\"hidden\" name=\".*\" value=\".*\" />.*";
private static Matcher fileXtensionMatcher;
private static String input = text  "<html><body><table width="96"><tr><td><img src=&quot;file:/test&quot;  /><input type="hidden" name="docExt" value=".doc" />Employee Trv Log 2011 Training Trip.doc</td></tr></table></body></html>"

private static void findFileExtension() {
    System.out.println("** Searching for file extension **");
    System.out.println("Looking for pattern: " + fileExtensionPattern);
    fileXtensionMatcher = fileXtensionExp.matcher(input);

    if(fileXtensionMatcher.find()) {
        //the extension expression is contained in the string
        System.out.println("Extension expression found.");
        System.out.println(fileXtensionMatcher.group());
    }
}

The obtained result is:

text    "<html><body><table width="96"><tr><td><img src=&quot;file:/test&quot;  /><input type="hidden" name="docExt" value=".doc" />Employee Trv Log 2011 Training Trip.doc</td></tr></table></body></html>"
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    After you added the source code, I can assure you the group() returns the whole input string because it matches your regular expression. If you want just the <input> element use:

    private static String fileExtensionPattern = "<input type=\"hidden\" name=\".*\" value=\".*\" />";

    Or use:

    private static String fileExtensionPattern = ".*(<input type=\"hidden\" name=\".*\" value=\".*\" />).*";
. . .
System.out.println(fileXtensionMatcher.group(1));
    • 0