How to create a file in a directory in java

Question

If I want to create a file in C  a b test txt  can I do something like   File f   new File  C  a b test txt      Also  I want to use FileOutputStream to create the file  So how would I do it  For some reason the file doesn t get created in the right directory

User · Answer

You need to ensure that the parent directories exist before writing  You can do this by File mkdirs     File f   new File  C  a b test txt    f getParentFile   mkdirs

User · Answer

The best way to do it is   String path    C     File separator    hello    File separator    hi txt      Use relative path for Unix systems File f   new File path    f getParentFile   mkdirs     f createNewFile

User · Answer

For using the FileOutputStream try this     public class Main01      public static void main String   args  throws FileNotFoundException          FileOutputStream f   new FileOutputStream  file txt            PrintStream p   new PrintStream f           p println  George                     p println  Alain                      p println  Gerard                     p close            f close

User · Answer

Use   File f   new File  C   a  b  test txt    f mkdirs    f createNewFile      Notice I changed the forward slashes to double back slashes for paths in Windows File System  This will create an empty file on the given path

User · Answer

Create New File in Specified Path  import java io File  import java io IOException   public class CreateNewFile        public static void main String   args            try               File file   new File  d  sampleFile txt                if file createNewFile                    System out println  File creation successfull                else                 System out println  Error while creating File  file already exists in specified path                      catch IOException io                io printStackTrace                         Program Output   File creation successfull

User · Answer

A better and simpler way to do that    File f   new File  C  a b test txt    if  f exists        f createNewFile        Source

User · Answer

When you write to the file via file output stream  the file will be created automatically  but make sure all necessary directories   folders  are created      String absolutePath           try         File file   new File absolutePath          file mkdirs              all parent folders are created          now the file will be created when you start writing to it via FileOutputStream         catch  Exception e           System out println  quot Error    quot   e getmessage

User · Answer

To create a file and write some string there   BufferedWriter bufferedWriter   Files newBufferedWriter Paths get  Path to your file     bufferedWriter write  Some string       to write some data    bufferedWriter write                 for empty file bufferedWriter close      This works for Mac and PC

User · Answer

String path    C   File separator  hello   String fname  path File separator  abc txt       File f   new File path       File f1   new File fname        f mkdirs         try           f1 createNewFile          catch  IOException e               TODO Auto-generated catch block         e printStackTrace              This should create a new file inside a directory

User · Answer

Surprisingly  many of the answers don t give complete working code  Here it is   public static void createFile String fullPath  throws IOException       File file   new File fullPath       file getParentFile   mkdirs        file createNewFile       public static void main String    args  throws Exception       String path    C  donkey bray txt       createFile path

User · Answer

With Java 7  you can use Path  Paths  and Files   import java io IOException  import java nio file FileAlreadyExistsException  import java nio file Files  import java nio file Path  import java nio file Paths   public class CreateFile        public static void main String   args  throws IOException           Path path   Paths get   tmp foo bar txt             Files createDirectories path getParent              try               Files createFile path             catch  FileAlreadyExistsException e                System err println  already exists      e getMessage

[java] How to create a file in a directory in java?

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