Java: Check whether a directory has some files or not

Below snippet return true, if the given path is a directory and has files in it.

public static boolean hasFiles(final Path directoryPath) throws IOException {
	try (final Stream<Path> stream = Files.list(directoryPath)) {
		return stream.findAny().isPresent();
	}
}

 

Find the below working application.

 

DirectoryFilesCheck.java

package com.sample.app.files;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.stream.Stream;

public class DirectoryFilesCheck {

	/**
	 * @param directoryPath directory path
	 * @return {@code true} if the given directory path contains files
	 * @throws IOException on any I/O errors accessing the path
	 */
	public static boolean hasFiles(final Path directoryPath) throws IOException {
		try (final Stream<Path> stream = Files.list(directoryPath)) {
			return stream.findAny().isPresent();
		}
	}

	public static void main(String[] args) throws IOException {
		final String dirPath1 = "/Users/Shared";

		if (hasFiles(Paths.get(dirPath1))) {
			System.out.println("Directory '" + dirPath1 + "' has files in it");
		} else {
			System.out.println("Directory '"+ dirPath1 + "' is empty");
		}

		final Path dirPath2 = Files.createDirectories(Paths.get(dirPath1, "newDir"));
		System.out.println(dirPath2 + " is created");
		
		if (hasFiles(Paths.get(dirPath2.toString()))) {
			System.out.println("Directory '" + dirPath2 + "' has files in it");
		} else {
			System.out.println("Directory '" + dirPath2 + "' is empty");
		}
	}

}

Output

Directory '/Users/Shared' has files in it
/Users/Shared/newDir is created
Directory '/Users/Shared/newDir' is empty

 

 

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