Add index to filename for existing file (file.txt => file_1.txt)

Question

I want to add an index to a filename if the file already exists, so that I don\'t overwrite it.

Like if I have a file myfile.txt and same time myfile.

Answer 1

Try this link partly answers your query.

https://stackoverflow.com/a/805504/1961652

    DirectoryScanner scanner = new DirectoryScanner();
    scanner.setIncludes(new String[]{"**/myfile*.txt"});
    scanner.setBasedir("C:/Temp");
    scanner.setCaseSensitive(false);
    scanner.scan();
    String[] files = scanner.getIncludedFiles();

once you have got the correct set of files, append a proper suffix to create a new file.