I'm trying to check if a directory entered in a JTextField exists or not. I tried to use Files.notExists() but the first argument must be of type Path and I could not figure out how to convert from String .
String caminho = txtDirIndexado.getText().replace("\", "\\");
if (Files.notExists(caminho, LinkOption.NOFOLLOW_LINKS)) {
}
You can create Path from a String just use the methods of class Paths (plural), for example:
Path p1 = Paths.get("/tmp/foo");
Path p2 = Paths.get(args[0]);
Path p3 = Paths.get(URI.create("file:///Users/joe/FileTest.java"));
Just remember that this new API of files was added from Java 7.
To learn more See the following documentation:
Retrieved from link
The
Pathclass includes several methods that can be used to get information about a path, access elements of a path, convert a path into other shapes, or blur portions of a path. There are also methods for finding paths and methods to remove redundancies.
A directory can be represented by java.io.File , which has a exists() method. You can create a File object, and call exists() of the form:
File file = new File(caminho);
if (file.exists()) {
// fazer algo se diretorio existe
}
You can still test if the file is actually a directory using isDirectory() :
if (file.exists()) {
if (file.isDirectory()) {
String[] conteudo = file.list();
...
...
}
See javadoc for java.io.File .