get specific subdirectory in java using paths

Question

to get subdirectories of a directory I am currently using

Paths.get(currentpath.toString(), "subdirectory");

is there a better method? I specifically do not like the toString call, and I'd prefer to not use .toFile() if possible.

I tried searching for this here but I only found answers about the old api or what I was currently using or completely unrelated questions.

Do you want all subdirs or just a specific one?

deHaar
– deHaar

2020-02-11 14:08:06 +00:00
Commented Feb 11, 2020 at 14:08 — deHaar
– deHaar, Commented Feb 11, 2020 at 14:08
Perhaps Path.resolve(Path other)?

Boris
– Boris

2020-02-11 14:15:16 +00:00
Commented Feb 11, 2020 at 14:15 — Boris
– Boris, Commented Feb 11, 2020 at 14:15
@deHaar I want a specific one.

Slackow
– Slackow

2020-02-11 14:31:59 +00:00
Commented Feb 11, 2020 at 14:31 — Slackow
– Slackow, Commented Feb 11, 2020 at 14:31

deHaar · Accepted Answer · 2020-02-11 14:19:21Z

3

You can just resolve the name of the subdirectory against the root Path like this:

public static void main(String[] args) {
    // definition of the root directory (adjust according to your system)
    String currentPath = "C:\\";
    Path root = Paths.get(currentPath);

    // get a specific subdirectory by its name
    String specificSubDir = "temp";
    // resolve its name against the root directory
    Path specificSubDirPath = root.resolve(specificSubDir);

    // and check the result
    if (Files.isDirectory(specificSubDirPath)) {
        System.out.println("Path " + specificSubDirPath.toAbsolutePath().toString()
                + " is a directory");
    } else {
        System.err.println("Path " + specificSubDirPath.toAbsolutePath().toString()
                + " is not a directory");
    }
}

Since I have a directory C:\temp\, the output on my system is

Path C:\temp is a directory

answered Feb 11, 2020 at 14:19

deHaar

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1 Comment

Slackow Over a year ago

thank you, this is exactly what I wanted, I was unfamiliar with the keyword resolve in this case. I also was only looking through Paths and Files

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