Java Program to Check if a Directory is Empty or Not

// Java Program to check if 
// a directory is empty or not

import java.io.File;

class GFG {
  
    public static void main(String[] args)
    {
        // mention the directory path
        File directory = new File("/home/mayur");

        if (directory.isDirectory()) {
          
            // creating a String Array
            // store name of files
            String arr[] = directory.list();

            // check if length is greater than 0 or not
            if (arr.length > 0) {
                System.out.println("The directory "
                                   + directory.getPath()
                                   + " is not Empty!");
            }
            else {
                System.out.println("The directory "
                                   + directory.getPath()
                                   + " is Empty!");
            }
        }
    }
}

// Java Program to check if a
// directory is empty or not

import java.io.File;
import java.io.IOException;
import java.nio.file.DirectoryStream;
import java.nio.file.Files;
import java.nio.file.Path;

public class GFG {
  
    // boolean function which
    // return true if directory is
    // empty else return false
    public static boolean isEmptyDirectory(File directory)
        throws IOException
    {
        // check if given path is a directory
        if (directory.exists()) {
            if (!directory.isDirectory()) {

                // throw exception if given path is a
                // file
                throw new IllegalArgumentException(
                    "Expected directory, but was file: "
                    + directory);
            }
            else {
                // create a stream and check for files
                try (DirectoryStream<Path> directoryStream
                     = Files.newDirectoryStream(
                         directory.toPath())) {
                    // return false if there is a file
                    return !directoryStream.iterator()
                                .hasNext();
                }
            }
        }
        // return true if no file is present
        return true;
    }

    public static void main(String[] args)
        throws IOException
    {
        // enter path of directory
        File directory = new File("/home/mayur");

        // call isEmptyDirectory Function
        if (isEmptyDirectory(directory)) {
            System.out.println("The directory "
                               + directory.getPath()
                               + " is Empty!");
        }
        else {
            System.out.println("The directory "
                               + directory.getPath()
                               + " is Not Empty!");
        }
    }
}