NIO 2 File API: Difference between revisions

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Line 46: Line 46:
Path file = ...;
Path file = ...;
Files.write(file, "something".getBytes());
Files.write(file, "something".getBytes());
</syntaxhighlight>
Verify that a directory exists (works for both absolute and relative paths)
<syntaxhighlight lang='java'>
Path p = Paths.get("/Users/ovidiu/tmp");
assert Files.isDirectory(p) == true
// run from "/Users"
Path p = Paths.get("ovidiu/tmp");
assert Files.isDirectory(p) == true
</syntaxhighlight>
</syntaxhighlight>

Revision as of 01:40, 2 April 2021

External

Internal

Subjects

Recipes

Build a new absolute Path instances from components:

Path p = Paths.get("/Users", "ovidiu", "tmp")

Build a new relative Path instances from components:

Path p = Paths.get("ovidiu", "tmp")


Create one directory:

Path parent = ...;
Path dir = Files.createDirectory(Paths.get(parent.toString(), "my-dir"));

Create a directory hierarchy:

Path parent = ...;
Path dir = Files.createDirectories(Paths.get(parent.toString(), "dir1/dir2/dir3"));

Get file name:

Path file = ...;
String fileName = file.getFileName().toString();

Create a file with a specified content:

Path file = ...;
Files.write(file, "something".getBytes());

Verify that a directory exists (works for both absolute and relative paths)

Path p = Paths.get("/Users/ovidiu/tmp");
assert Files.isDirectory(p) == true
// run from "/Users"
Path p = Paths.get("ovidiu/tmp");
assert Files.isDirectory(p) == true