Create File in Java

In this section, you will see how to create file in java.

Create File in Java

In this section, you will see how to create file in java.

Create File in Java

Create a File 

     

Introduction

Whenever the data is need to be stored, a file is used to store the data. File is a collection of stored information that are arranged in string, rows, columns and lines etc.
In this section, we will see how to create a file. This example takes the file name and text data for storing to the file.

For creating a new file File.createNewFile( ) method is used. This method returns a boolean value true if the file is created otherwise return false. If the mentioned file for the specified directory is already exist then the createNewFile() method returns the false otherwise the method creates the mentioned file and return true. 

Lets see an example that checks the existence of  a specified file.

import java.io.*;

public class CreateFile1{
  public static void main(String[] args) throws IOException{
  File f;
  f=new File("myfile.txt");
  if(!f.exists()){
  f.createNewFile();
  System.out.println("New file \"myfile.txt\" has been created 
  to the current directory");
  }
  }
}

First, this program checks, the specified file "myfile.txt" is exist or not. if it does not exist then a new file is created with same name to the current location. 

Output of the Program

C:\nisha>javac CreateFile1.java

C:\nisha>java CreateFile1
New file "myfile.txt" has been created to the current directory

C:\nisha>

If you try to run this program again then after checking the existence of the file, it will not be created and you will see a message as shown in the output.

C:\nisha>javac CreateFile1.java

C:\nisha>java CreateFile1
The specified file is already exist

C:\nisha>

Download this Program

 

 

Tutorials

  1. Classes and Interfaces of the I/O Streams
  2. How to read a file line by line?
  3. What is Java I/O?
  4. Read Text from Standard IO
  5. Filter Files in Java
  6. Create zip file in Java
  7. Java read file line by line - Java Tutorial
  8. Constructing a File Name path in Java
  9. Getting a absolute path
  10. Convert a file name path to url and vice versa in java
  11. Getting the Parents of file name path in Java
  12. Create File in Java
  13. Java - Copying one file to another
  14. Getting the Size of a File in Java
  15. Java - Deleting the file or Directory
  16. Moving file or directory from one directory to another
  17. Getting the modification date and time of file or folder in Java
  18. Getting the Current Working Directory in Java
  19. Java Create Directory - Java Tutorial
  20. Copy Directory or File in Java
  21. Directory and File Listing Example in Java
  22. Traversing a file and directory under a directory
  23. Java Write To File - Java Tutorial
  24. Making Tokens of a Java Source Code
  25. Append To File - Java Tutorial
  26. Using a Random Access File in Java
  27. Reading UTF - 8 Encoded Data in Java
  28. Writing UTF-8 Encoded Data in Java
  29. Reading ISO Latin-1 Encoded Data in Java
  30. Writing ISO Latin-1 Encoded Data in Java
  31. Serializing an Object in Java
  32. Deserializing an Object in java
  33. Downloading and Viewing html source of a page i.e. running on the server
  34. Zip File Using Java
  35. Zip Folder Using Java
  36. Unzip File Using Java
  37. Java I/O Examples
  38. Java I/0 Examples
  39. Rename the File or Directory in Java
  40. Create zip file in Java