Posted By

pmatrasc on 02/08/08

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file
files
extension

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Last Edited at 02/08/08 09:07am

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Extract the extension of a file from a full pathname

/ Published in: Java

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public static String getFileExtension(String fileName) {
        File tmpFile = new File(fileName);
        tmpFile.getName();
        int whereDot = tmpFile.getName().lastIndexOf('.');
        if (0 < whereDot && whereDot <= tmpFile.getName().length() - 2 ) {
            return tmpFile.getName().substring(whereDot+1);
        }    
        return "";
    }