Is there a Java utility which will convert a String path to use the correct File separator char?

Grundlefleck_4120 0
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I have developed a number of classes which manipulate files in Java. I am working on a Linux box, and have been blissfully typing new File("path/to/some/file");. When it came time to commit I realised some of the other developers on the project are using Windows. I would now like to call a method which can take in a String of the form "/path/to/some/file" and, depending on the OS, return a correctly separated path.

For example:
"path/to/some/file" becomes "path\\to\\some\\file" on Windows.
On Linux it just returns the given String.

I realise it wouldn't take long to knock up a regular expression that could do this, but I'm not looking to reinvent the wheel, and would prefer a properly tested solution. It would be nice if it was built in to the JDK, but if it's part of some small F/OSS library that's fine too.

So is there a Java utility which will convert a String path to use the correct File separator char?

java-6 file-io cross-platform java string
10 Answers

I create this function to check if a String contain a \ character then convert them to /

public static String toUrlPath(String path) {
  return path.indexOf('\\') < 0 ? path : path.replace('\\', '/');
}

public static String toUrlPath(Path path) {
  return toUrlPath(path.toString());
}
user_9804420 
String fileName = Paths.get(fileName).toString();

Works perfectly with Windows at least even with mixed paths, for example

c:\users\username/myproject\myfiles/myfolder

becomes 

c:\users\username\myproject\myfiles\myfolder

Sorry haven't check what Linux would make of the above but there again Linux file structure is different so you wouldn't search for such a directory

user_56525520
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