CODEWITHSUNDEEP
javafile
Asma
Asma

Reputation: 137

How to make sure that the folder name or folder-path is valid?

I'm working with Java 1.8. I'm trying to create a folder if not exists using this method:

   private void createDirIfNotExists(String dirChemin) {
        File file = new File(dirChemin);
        if (!file.exists()) {
          file.mkdirs();
        }
    }

This works when I give it the right path, for example this creates a folder if it doesn't exist

createDirIfNotExists("F:\\dir")

But when I write an incorrect path (or name), it didn't give me any thing even an error! for example :

createDirIfNotExists("F:\\..?§;>")

So I want to improve my method, so it can create the folder if it doesn't exist by making sure that my path is right, otherwise it should give me an error message.

Upvotes: 0

Views: 664

Answers (1)

JajaDrinker
JajaDrinker

Reputation: 662

mkdirs() also creates parent directories in the path this File represents.

javadocs for mkdirs():

Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories. Note that if this operation fails it may have succeeded in creating some of the necessary parent directories.

javadocs for mkdir():

Creates the directory named by this abstract pathname.

Example:

File  f = new File("non_existing_dir/someDir");
System.out.println(f.mkdir());
System.out.println(f.mkdirs());

will yield false for the first [and no dir will be created], and true for the second, and you will have created non_existing_dir/someDir

Upvotes: 1

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