How to list the files in current directory

Question

I want to be able to list the files in the current directory  I ve made something that should work but doesn t return all the file names   File dir   new File       File   filesList   dir listFiles    for  File file   filesList        if  file isFile              System out println file getName               It returns  classpath  but I m quite sure I have other java files inside this folder  Maybe the dot notation for current folder is incorrect

User · Answer

There is nothing wrong with your code   It should list all of the files and directories directly contained by the nominated directory   The problem is most likely one of the following    The     directory is not what you expect it to be   The     pathname actually means the  current directory  or  working directory  for the JVM   You can verify what directory     actually is by printing out dir getCanonicalPath    You are misunderstanding what dir listFiles   returns   It doesn t return all objects in the tree beneath dir   It only returns objects  files  directories  symlinks  etc  that are directly in dir    The   classpath  file suggests that you are looking at an Eclipse project directory  and Eclipse projects are normally configured with the Java files in a subdirectory such as    src    I wouldn t expect to see any Java source code in the     directory        Can anyone explain to me why src isn t the current folder     Assuming that you are launching an application in Eclipse  then the current folder defaults to the project directory   You can change the default current directory via one of the panels in the Launcher configuration wizard

User · Answer

I used this answer with my local directory   for example E      it is worked fine for the first directory and for the seconde directory the output made a java null pointer exception  after searching for the reason i discover that the problem was created by the hidden directory  and this directory was created by windows  to avoid this problem just use this   public void recursiveSearch File file      File   filesList   file listFiles        for  File f   filesList            if  f isDirectory    amp  amp   f isHidden                  System out println  Directoy name is  -------------- gt     f getName                 recursiveSearch f                     if  f isFile                  System out println  File name is  -------------- gt     f getName

User · Answer

Maybe the dot notation for current folder is incorrect    Print the result of File getCanonicalFile   to check the path       Can anyone explain to me why src isn t the current folder     Your IDE is setting the class-path when invoking the JVM   E G    reaches for Netbeans  If you select menus File   Project Properties  all classes  you might see something similar to     It is the Working Directory that is of interest here

User · Answer

Had a quick snoop around for this one  but this looks like it should work  I haven t tested it yet though       File f   new File          current directory      File   files   f listFiles        for  File file   files            if  file isDirectory                  System out print  directory               else               System out print       file                       System out println file getCanonicalPath

User · Answer

Try this to retrieve all files inside folder and sub-folder  public static void main String  args                File curDir   new File               getAllFiles curDir             private static void getAllFiles File curDir             File   filesList   curDir listFiles            for File f   filesList               if f isDirectory                    getAllFiles f               if f isFile                     System out println f getName                                      To retrieve files folder only  public static void main String  args                File curDir   new File               getAllFiles curDir             private static void getAllFiles File curDir             File   filesList   curDir listFiles            for File f   filesList               if f isDirectory                    System out println f getName                 if f isFile                     System out println f getName

User · Answer

You should verify that new File      is really pointing to where you think it is pointing -  classpath suggests the root of some Eclipse project

User · Answer

Your code gives expected result if you compile and run your code standalone from commandline   As in eclipse for each project by default working directory is project directory that s why you are getting this result   You can set user dir property in java as      System setProperty  user dir    absolute path of src folder      then it will give expected result

[java] How to list the files in current directory?

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