How to know if a file path is relative or absolute

[Nomak]

Hello,

i want to test if a file path is relative. Here is code at the moment:

public static boolean isPathRelative(File file) {
String path = file.toString();

// if linux (root)
if (path.startsWith("/") || !path.startsWith("\\"))
return false;

// if windows (UNC, or drive letter)
if (path.startsWith("\\\\") || path.indexOf(":\\") > 0)
return false;

return true;
}


but i don't know how to test the OS i'm running on. Can somebody help me?

TIA

 

[Roedy Green]

but i don't know how to test the OS i'm running on. Can somebody help me?

another way to do it is to get the absolute path and see how different
it is from the original.

In windows you can have both / and \

You could find out what os by checking the system properties. See
http://mindprod.com/applets/wassup.html

--
Bush crime family lost/embezzled $3 trillion from Pentagon.
Complicit Bush-friendly media keeps mum. Rumsfeld confesses on video.
http://www.infowars.com/articles/us/mckinney_grills_rumsfeld.htm

Canadian Mind Products, Roedy Green.
See http://mindprod.com/iraq.html photos of Bush's war crimes

 

[Andrea Desole]

another way to do it is to get the absolute path and see how different
it is from the original.

how about "new File( path ).isAbsolute()" ?

 

[Patricia Shanahan]

Hello,

i want to test if a file path is relative. Here is code at the moment:

public static boolean isPathRelative(File file) {
String path = file.toString();

// if linux (root)
if (path.startsWith("/") || !path.startsWith("\\"))
return false;

// if windows (UNC, or drive letter)
if (path.startsWith("\\\\") || path.indexOf(":\\") > 0)
return false;

return true;
}


but i don't know how to test the OS i'm running on. Can somebody help me?

TIA

The Java API let's you do a lot of stuff without worrying about which OS:

public static boolean isPathRelative(File file) {
return !file.isAbsolute();
}

Patricia

 

[Nomak]

public static boolean isPathRelative(File file) {
return !file.isAbsolute();
}

thx you! i didn't see it.