Java create directory in linux

Create a New Folder Using Java Program on Windows and Linux MAChines

Create a New folder using Java Program on Windows and Linux machines

new File("/path/to/folder").mkdir();

If you want to created nested folders (i.e. more than one folder on the path may be missing), then use mkdirs() . See java.io.File .

Note that forward slashes would normally not work on windows, but Java normalizes the path and translates forward to backward slashes.

Java create directory using File for Unix / Windows

You should use the System user.home property which will return the user’s home directory in a system independent manner, for example.

 File home = new File(System.getProperty("user.home"));

mkdir will only create the last element in the path, where as mkdirs will create all the elements that do not exist. Using mkdirs is probably a slightly better idea as it ensures (where permissions allow) that all elements in the path will be created if they do not exist

How to create a directory in Java?

After ~7 year, I will update it to better approach which is suggested by Bozho.

File theDir = new File("/path/directory");
if (!theDir.exists()) theDir.mkdirs();
>

JAVA — Create a file in linux server

If the machine «10.30.10.117» is on your local network and if you have the permission to create file on that machine then the problem is

File folder = new File("//10.30.10.117:/home/images/784/");
File file = new File("//10.30.10.117:/home/images/784/1508-1-N.png");
folder.mkdirs();
file.createNewFile();

Before write to file create it.

But if the machine «10.30.10.117» is on external network for your machine then you can’t create a file or folder directly from your machine. You need ftp connection vb.

How can I write to a file in linux using java code which runs on my windows machine?

You can do that with external library JSch.
The below should do the job.

JSch jsch = new JSch();
Session session = jsch.getSession("remote_user_name", "remote_host_or_ip", 22); // 22 for SFTP
session.setPassword("remote_password");


java.util.Properties config = new java.util.Properties();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);

session.connect(10000);
Channel channel = session.openChannel("sftp");
channel.connect();

System.out.println("Connection Opened");
ChannelSftp channelSftp = (ChannelSftp) channel;
InputStream inputStream = new FileInputStream("text_file.txt");
channelSftp.put(inputStream, "/remote/folder/file_to_be_rewritten.txt");

System.out.println("File should be uploaded");

channelSftp.disconnect();
session.disconnect();

How to create a file in a directory in java?

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();

how to create folders for a specific user on a web application container?

I wouldn’t expose the folder directly through URLs as that would be a serious security concern where one user can access the folder of another user if the naming scheme is understood.

• create folders by user name in a separate location that is not accessible through the URL, using the java.io.File.mkdir() .
• write a simple Servlet that would read the servletRequest.getPathInfo() , identifies the user name from the path, along with the file to be served. For this to happen, the servlet class and URL pattern should be defined as follows:

Creating a folder within web server under /public_html/ in Java

To point to public web directory use

ServletContext context = request.getServletContext();
String path = context.getRealPath("/");

and append your path to the path (above resolved)

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Creating directory in Java

In Java create directory tutorial, we show how to create a directory in Java. We also show how to set directory permissions on POSIX systems.

A is an organizational file system structrure that contains files and optionally other directories.

The java.nio.file.Files class consists of static methods that operate on files, directories, or other types of files.

Java create directory with Files.createDirectory

The Files.createDirectory creates a new directory. If a file already exists, a FileAlreadyExistsException is thrown.

package com.zetcode; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; public class JavaCreateDirectory < public static void main(String[] args) throws IOException < String fileName = "/home/janbodnar/tmp/newdir"; Path path = Paths.get(fileName); if (!Files.exists(path)) < Files.createDirectory(path); System.out.println("Directory created"); >else < System.out.println("Directory already exists"); >> >

The example creates a new directory with Files.createDirectory .

String fileName = "/home/janbodnar/tmp/newdir"; Path path = Paths.get(fileName);

A Path is created from the file name. A Path is a Java object used to locate a file in a file system.

We first check if the directory does not already exist with Files.exists .

The directory is created with Files.createDirectory . The method takes a path object as a parameter.

Java create directories with Files.createDirectories

The Files.createDirectories creates a new directory; if the parent directories do not exist, they are created as well. The method does not thrown an exception if the directory already exist.

package com.zetcode; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; public class JavaCreateDirectories < public static void main(String[] args) throws IOException < String fileName = "/home/janbodnar/docs/memos"; Path path = Paths.get(fileName); Files.createDirectories(path); >>

The example creates a new directory with Files.createDirectories .

Java creating directory with permissions

With PosixFilePermissions , we can create a new directory and set its permissions. Note that this class cannot be used for Windows systems.

package com.zetcode; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.attribute.FileAttribute; import java.nio.file.attribute.PosixFilePermission; import java.nio.file.attribute.PosixFilePermissions; import java.util.Set; public class JavaCreateDirectoryWithPermissions < public static void main(String[] args) throws IOException < String fileName = "/home/janbodnar/tmp/newdir"; Path mypath = Paths.get(fileName); if (!Files.exists(mypath)) < Setpermissions = PosixFilePermissions.fromString("rwxr--r--"); FileAttribute fileAttributes = PosixFilePermissions.asFileAttribute(permissions); Files.createDirectory(mypath, fileAttributes); System.out.println("Directory created"); > else < System.out.println("Directory already exists"); >> >

The example creates a new directory with the specified permissions.

In this article we have shown how to create directories in Java.

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My name is Jan Bodnar and I am a passionate programmer with many years of programming experience. I have been writing programming articles since 2007. So far, I have written over 1400 articles and 8 e-books. I have over eight years of experience in teaching programming.

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Create a New folder using Java Program on Windows and Linux machines

My directory structure is starts from the current application directory, Means in current projects directory which looks like following. I know how to create Directory but I need to create sub directory I tried with following code what should be next steps ? If you don’t like tricky solutions, you can use 4 simple paths instead: and then call the method for all of them: Solution 3: You can create all parent directories by using File.mkdirs().

How to create a directory in Java?

Once I have tested System.getProperty(«user.home»);

I have to create a directory (directory name «new folder» ) if and only if new folder does not exist.

new File("/path/directory").mkdirs(); 

Here «directory» is the name of the directory you want to create/exist.

After ~7 year, I will update it to better approach which is suggested by bozho.

File theDir = new File("/path/directory"); if (!theDir.exists())

With Java 7, you can use Files.createDirectories() .

Files.createDirectories(Paths.get("/path/to/directory")); 

You can try FileUtils#forceMkdir

FileUtils.forceMkdir("/path/directory"); 

This library have a lot of useful functions.

How to create a directory in Java?, Add a comment. 24. Create a single directory. new File («C:\\Directory1»).mkdir (); Create a directory named “Directory2 and all its sub-directories “Sub2″ and “Sub-Sub2″ together. new File («C:\\Directory2\\Sub2\\Sub-Sub2»).mkdirs () Source: this perfect tutorial , you find also an example of use. Code sampleFile theDir = new File(«/path/directory»);if (!theDir.exists())Feedback

Create a New folder using Java Program on Windows and Linux machines

How can I create a Folder using Java code on both Windows and Linux machines?

new File("/path/to/folder").mkdir(); 

If you want to created nested folders (i.e. more than one folder on the path may be missing), then use mkdirs() . See java.io.File .

Note that forward slashes would normally not work on windows, but Java normalizes the path and translates forward to backward slashes.

 try < String strDirectoy ="test"; String strManyDirectories="dir1"+File.Separator+"dir2"+File.Separator+"dir3"; // Create one directory boolean success = (new File(strDirectoy)).mkdir(); if (success) < System.out.println("Directory: " + strDirectoy + " created"); >// Create multiple directories success = (new File(strManyDirectories)).mkdirs(); if (success) < System.out.println("Directories: " + strManyDirectories + " created"); >>catch (Exception e) 

Create a New folder using Java Program on Windows, 4 Answers. Sorted by: 42. new File («/path/to/folder»).mkdir (); If you want to created nested folders (i.e. more than one folder on the path may be missing), then use mkdirs (). See java.io.File. Note that forward slashes would normally not work on windows, but Java normalizes the path and translates …

How to create a directory and sub directory structure with java?

Hello there I want to create the directories and sub directories with the java. My directory structure is starts from the current application directory, Means in current projects directory which looks like following.

Images | |+ Background | |+ Foreground | |+Necklace |+Earrings |+Etc. 

I know how to create Directory but I need to create sub directory I tried with following code what should be next steps ?

File file = new File("Images"); file.mkdir(); 

You can use File.mkdir() or File.mkdirs() to create a directory. Between the two, the latter method is more tolerant and will create all intermediate directories as needed. Also, since I see that you use «\\» in your question, I would suggest using File.separator for a portable path separator string.

Starting from Java 7 , you can use the java.nio.file.Files & java.nio.file.Paths classes.

Path path = Paths.get("C:\\Images\\Background\\..\\Foreground\\Necklace\\..\\Earrings\\..\\Etc"); try < Files.createDirectories(path); >catch (IOException e)

This is a tricky solution (because I used only one path to go to the whole structure).

If you don’t like tricky solutions, you can use 4 simple paths instead:

Path p1 = Paths.get("C:\\Images\\Background"); Path p2 = Paths.get("C:\\Images\\Foreground\\Necklace"); Path p3 = Paths.get("C:\\Images\\Foreground\\Earrings"); Path p4 = Paths.get("C:\\Images\\Foreground\\Etc"); 

and then call the createDirectories method for all of them:

Files.createDirectories(p1); Files.createDirectories(p2); Files.createDirectories(p3); Files.createDirectories(p4); 

You can create all parent directories by using File.mkdirs().

File.mkdirs() — Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories. Note that if this operation fails it may have succeeded in creating some of the necessary parent directories.

You could do it with File#mkdirs() and something like,

// The "/" is cross-platform safe as a path-separator in Java. // So is "\\" but that's twice the characters! String path = createImages.getAbsolutePath() + "/Images"; File f = new File(path); if (!f.isDirectory()) < boolean success = f.mkdirs(); if (success) < System.out.println("Created path: " + f.getPath()); >else < System.out.println("Could not create path: " + f.getPath()); >> else

Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories. Note that if this operation fails it may have succeeded in creating some of the necessary parent directories.

How to create a directory and sub directory structure, You can create all parent directories by using File.mkdirs (). File.mkdirs () — Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories. Note that if this operation fails it may have succeeded in creating some of the necessary parent directories. Share …

How to create a folder in Java?

How can I create an empty folder in Java?

File f = new File("C:\\TEST"); try < if(f.mkdir()) < System.out.println("Directory Created"); >else < System.out.println("Directory is not created"); >> catch(Exception e)

Call File.mkdir , like this:

With Java 7 and newer you can use the static Files.createDirectory() method of the java.nio.file.Files class along with Paths.get .

Files.createDirectory(Paths.get("/path/to/folder")); 

The method Files.createDirectories() also creates parent directories if these do not exist.

new File('/path/to/folder').mkdir(); 

Directory — How to create a folder in Java?, Browse other questions tagged java directory create-directory or ask your own question. The Overflow Blog The …

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