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Searching files without file extension

Hi Guys,

I want to search for all files without file extensions using regular expression.  For examples, I have these files:

file1.xml
file2.dos
file3
file4.pcc
file5


Result is

file3
file5




Thank you in advance
0
xanbi
Asked:
xanbi
2 Solutions
 
ozoCommented:
^[^.]*$
0
 
see4me2002Commented:
Hope this helps. below gives the extension separately
***********************

import java.util.regex.*;

public class Main {
    public static void main(String[] args) {
        /*
        Regex: (?<=\\.).*$
        1.)     (?<=\\.)    means       lookbehind excluding "." and add
        2.)     .*          means       every character until
        3.)     $           meabs       end of string
        */
       
        String
                regex = "(?<=\\.).*$",
                input = "C:\\dir\\filename.txt";
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(input);
        String output = "no match";
        if (matcher.find()){
            output = matcher.group();
        }
        System.out.println("\t Output: " + output);
    }
}

******************

Output : txt

0

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