Java Program to Rename File

In this tutorial, we will learn how to rename file in Java.

Rename the File

The Java File class provides the "renameTo()" method to change the name of the file. It returns "true" if the renaming operation succeeds otherwise returns "false".

Example: Rename a File in Java

import java.io.File;

class Main {

  public static void main(String[] args) {

    // create a file object

    File file = new File("oldName");

      

    // create a file

    try {

      file.createNewFile();

    }

    catch(Exception e) {

      e.getStackTrace();

    }

    // create an object that contains the new name of file

    File newFile = new File("newName");

    // change the name of file

    boolean value = file.renameTo(newFile);

    if(value) {

      System.out.println("The name of the file is changed.");

    }

    else {

      System.out.println("The name cannot be changed.");

    }

  }

}

In the above example, we have created a "file" object named file. The object holds information about the specified file path.

File file = new File("oldName");

We then create a new file with the specified file path.

// create a new file with the specified path

file.createNewFile();

Here, we have created another file object named "newFile". The object holds information about the specified file path.

File newFile = new File("newFile");

To change the name of the file, we have used the "renameTo()" method. The name specified by the "newFile" object is used to rename the file specified by the file object.

file.renameTo(newFile);

If the operation succeeds, then the following message is shown.

The name of the file is changed.

If the operation cannot succeed, the following message is shown.

The name cannot be changed.