CODEWITHSUNDEEP
javacross-platformfilepath
Tom Neyland
Tom Neyland

Reputation: 6968

Cross-platform file path building and representation

I am in a refactoring stage for a project I am working on and would like to make some improvements to how I build and represent file system paths. What things should I take into consideration when representing relative paths in Java code to ensure compatibility on Ubuntu, OSX, and Windows 7.

Currently to get an instance of File referencing "MyProject/foo/bar.f" I would have code along the lines of:

File bar = new File(ProjectDirectory + "/" + FooResourceDirectory + "/" + barName);

This seems wrong for several reasons, what are some of the best practices?

Upvotes: 8

Views: 3713

Answers (2)

Ralph
Ralph

Reputation: 120791

First of all you should use File.separator File.pathSeparator instead of "/".

Upvotes: 9

user166390
user166390

Reputation:

Perhaps use the constructors provided to do this sort of thing:

new File(parent, child)

You have to "nest" them, but it's trivial to handle this (e.g. make a function to get a path built from something taking string....)

See the File constructors.

Upvotes: 12

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