Check if a path represents a file or a folder

Question

I need a valid method to check if a String represents a path for file or a directory  What are valid directory names in Android  As it comes out  folder names can contain     chars  so how does system understand whether there s a file or a folder

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Please stick to the nio API to perform these checks  import java nio file     static Boolean isDir Path path      if  path    null     Files exists path   return false    else return Files isDirectory path

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String path    Your Path   File f   new File path    if  f isDirectory           else if f isFile

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Clean solution while staying with the nio API   Files isDirectory path  Files isRegularFile path

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private static boolean isValidFolderPath String path        File file   new File path       if   file exists            return file mkdirs              return true

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There is no way for the system to tell you if a String represent a file or directory  if it does not exist in the file system  For example    Path path   Paths get   some path to dir    System out println Files isDirectory path       return false System out println Files isRegularFile path       return false   And for the following example    Path path   Paths get   some path to dir file txt    System out println Files isDirectory path       return false System out println Files isRegularFile path        return false   So we see that in both case system return false  This is true for both java io File and java nio file Path

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Assuming path is your String   File file   new File path    boolean exists        file exists            Check if the file exists boolean isDirectory   file isDirectory       Check if it s a directory boolean isFile        file isFile            Check if it s a regular file   See File Javadoc    Or you can use the NIO class Files and check things like this   Path file   new File path  toPath     boolean exists        Files exists file             Check if the file exists boolean isDirectory   Files isDirectory file        Check if it s a directory boolean isFile        Files isRegularFile file      Check if it s a regular file

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To check if a string represents a path or a file programatically  you should use API methods such as isFile    isDirectory        How does system understand whether there s a file or a folder    I guess  the file and folder entries are kept in a data structure and it s managed by the file system

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public static boolean isDirectory String path        return path   null  amp  amp  new File path  isDirectory        To answer the question directly

[java] Check if a path represents a file or a folder

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