CODEWITHSUNDEEP
javawindowsfile
steve
steve

Reputation: 483

Java File mkdir gives false result

So I'm trying to make a map to store some files in a dir that is made at the beginning of the program. But on windows there is still a problem, because the directory is never made. And I can't find a solution. The same code works perfect on a Unix system but not on a Windows system.

protected String createScreenshotMap(){
        this.dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        this.date = new Date();
        String testMap = this.checkOS();
        File fileMap = null;
        boolean check;
        try{
            if(os.indexOf("win") >= 0){
                fileMap = new File(testMap);
                check = fileMap.canWrite();
                System.out.println(check);
                String path = "C:" + File.separator + "testRun" + 
                                     File.separator + this.date.toString();
                fileMap = new File(path);
                System.out.println(fileMap.getAbsolutePath());
            }else{
                fileMap = new File(testMap + this.date.toString() + "/");
            }
            check = fileMap.mkdir();
            System.out.println(check);
        }catch (Exception e){
            e.printStackTrace();
        }
        return testMap;
    }

If I run this piece of code I get the following output

true
C:\testRun\Fri Apr 01 15:30:47 CEST 2016
false

I also checked I testRun exist and that was OK for java. i also checked if I could write and that gave true back, but it will still not make a dir in testRun

Upvotes: 1

Views: 144

Answers (1)

Maytham Fahmi
Maytham Fahmi

Reputation: 33397

You can not create a folder or file name with : (colon)

Details:
Regarding Microsoft resources, the following characters are reserved by Windows and can not be used to creating folder or filename:

< (less than)
> (greater than)
: (colon)
" (double quote)
/ (forward slash)
\ (backslash)
| (vertical bar or pipe)
? (question mark)
* (asterisk)

Reference:

Upvotes: 7

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