Java program to rename a file

Comprehensive Java Examples

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

InJava fileThe class provides the renameTo() method to change the file name. If the renaming operation is successful, it returns true; otherwise, it returns false.

Example: Rename a file using 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 containing the new file name
　　　　File newFile = new File("newName");
　　　　//Change the file name
　　　　boolean value = file.renameTo(newFile);
　　　　if(value) {
　　　　　　System.out.println("The file name has been changed.");
　　　　}
　　　　else {
　　　　　　System.out.println("The name cannot be changed.");
　　　　}
　　}
}

In the above example, we created a file object named file. This object stores information about the specified file path.

File file = new File("oldName");

Then, we create a new file using the specified file path.

//Create a new file with the specified path
file.createNewFile();

Here, we created another file object named newFile. This object stores information about the specified file path.

File newFile = new File("newFile");

To change the file name, we 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 is successfulThe following message will be displayed.

The file name has been changed.

If the operation cannot be successfulThe following message will be displayed.

The name cannot be changed.

Comprehensive Java Examples