Class File, making directories... relative to

[fdrage]

Hi,

How do you go about in creating a direcory folder?

I've been playing around with class File which has the method mkDir() (no arguments and returns type boolean), which i thought would be the answer to making a directory but apparently not, or perhaps i just dont understand it.

[jwenting]

That's indeed the method you want, but most likely you're not calling it correctly.

Without knowing what you're doing and what's happening as a result it's impossible to say more than that.

[fdrage]

OK this works, i forgot to add the "\\" at the end of the file argument

import java.io.File;
public class testFile {
	public static void main(String[] args) {
		File file = new File("C:\\tmpFolder\\");
		System.out.println(file.mkdir()? "success" :"failed"); 
	}
}

also worked out that if you want a relative path i just need to remove the "C:" so it would be like this \\tmpfolder\\ :cheesy:

[jwenting]

That's correct. And if you want to create a complete directory path even if parts don't exist, use mkDirs.

Some advise though: don't hardcode path separators. Use the system property "path.separator" instead to make your code platform independent (and of course always use relative paths to some system property).

[fdrage]

And if you want to create a complete directory path even if parts don't exist, use mkDirs.

what do you mean by "even if parts don't exist" , can u give us some example, thx

[jwenting]

mkDirs will create the entire path you pass it, including non-existent directories.
So if you pass it "/usr/myapp/data/20060407/xml" and only /usr/myapp" exists, it will first create data, then 20060407 under that, and finally xml under that to complete the structure.
mkDir would just give you an error.