Check Directory is Empty

package org.best.example;
 
import java.io.File;

public class CheckEmptyDirectoryExample
{
    public static void main(String[] args)
    {   
     File file = new File("C:\\folder");
     if(file.isDirectory()){
         if(file.list().length>0){
             System.out.println("Directory is not empty!");
         }else{
            System.out.println("Directory is empty!");
         }
     }else{
         System.out.println("This is not a directory");
     }
    }
}