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HowToDoInJavaCreating a new file in Java is a very easy task. In this Java tutorial, we will list down different ways to create a new file.
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Read More: Create a read only file in Java
1. Create file with java.nio.file.Files
Files.write() is best way to create a new file in Java and it should be your preferred approach in future if you are not already using it.
This method writes lines of text to the created file. Each line is a char sequence and is written to the file in sequence with each line terminated by the platform’s line separator.
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Method Syntax
Example 1: Check if a file already exist in Java
LinkOption.NOFOLLOW_LINKS
indicates that the application should not follow symbolic links in the file system to determine if the path exists.Example 2: Create a new file or append to an existing file
Use StandardOpenOption to indicate if a new file has to be created or not.
Example 3: Create a new file with default options
If we do not specify any
options
parameter then by default, CREATE
, TRUNCATE_EXISTING
, and WRITE
options are use.It does the following things:
- Opens the file for write if exist
- Creates the file if the file doesn’t exist
- Opens the file for writing
- Deletes all the file content
- Write the new content into the file
2. Create new file with java.io.File class
Use
File.createNewFile()
method to create new file. This method returns a boolean value –true
if the file is created successfully.false
if the file already exists or the operation failed for some reason.
Please note that this method will only create a file, and does not write any content into the file.
Java example to create a new create file if not exist
To write the content into the created file, use
FileWriter
class.3. Create new file with FileOutputStream
FileOutputStream.write()
method automatically creates a new file and write content to it.Happy Learning !!
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