java rename file - Brave Search

Rename a file using Java

stackoverflow.com › questions › 1158777 › rename-a-file-using-java

Copied from (originally) http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html (archived at the Wayback Machine).

// File (or directory) with old name
File file = new File("oldname");
    
// File (or directory) with new name
File file2 = new File("newname");

if (file2.exists())
   throw new java.io.IOException("file exists");
    
// Rename file (or directory)
boolean success = file.renameTo(file2);

if (!success) {
   // File was not successfully renamed
}

To append to the new file:

java.io.FileWriter out= new java.io.FileWriter(file2, true /*append=yes*/);

Answer from Pierre on Stack Overflow

stackoverflow.com › questions › 1158777 › rename-a-file-using-java

Rename a file using Java - Stack Overflow

Copied from (originally) http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html (archived at the Wayback Machine).

// File (or directory) with old name
File file = new File("oldname");
    
// File (or directory) with new name
File file2 = new File("newname");

if (file2.exists())
   throw new java.io.IOException("file exists");
    
// Rename file (or directory)
boolean success = file.renameTo(file2);

if (!success) {
   // File was not successfully renamed
}

To append to the new file:

java.io.FileWriter out= new java.io.FileWriter(file2, true /*append=yes*/);

In short:

Files.move(source, source.resolveSibling("newname"));

More detail:

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;

The following is copied directly from http://docs.oracle.com/javase/7/docs/api/index.html:

Suppose we want to rename a file to "newname", keeping the file in the same directory:

Path source = Paths.get("path/here");
Files.move(source, source.resolveSibling("newname"));

Alternatively, suppose we want to move a file to new directory, keeping the same file name, and replacing any existing file of that name in the directory:

Path source = Paths.get("from/path");
Path newdir = Paths.get("to/path");
Files.move(source, newdir.resolve(source.getFileName()), StandardCopyOption.REPLACE_EXISTING);

baeldung.com › home › java › java io › java – rename or move a file

Rename or Move a File in Java | Baeldung

January 5, 2024 - How to rename or move a file in Java, using JDK6, JDK7, Guava or Apache Commons.

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geeksforgeeks.org › java › java-program-to-rename-a-file

Java Program to Rename a File - GeeksforGeeks

July 23, 2025 - Create another object of the File class and replace the file path with the renaming path of the directory. Use renameTo() method. If rename operation successful then the function returns true.

reddit.com › r/learnjava › unable to rename a file in java?

r/learnjava on Reddit: Unable to rename a file in Java?

October 19, 2018 -

public static void main(String[] args) throws IOException
{	
  
File oldfile =new File("oldfile.txt");
	File newfile =new File("newfile.txt");
	
	if(oldfile.renameTo(newfile)){
		System.out.println("Rename succesful");
	}else{
		System.out.println("Rename failed");
	}

Everytime i have tried doing this, I get "rename failed", and I cannot for the life of me determine why. I have tried specifying an absolute filepath, reassigning the file objects to new variables, ensuring that I create the files first, but to no avail :|

Edit fixed it, what an idiot!

I forgot, the file object and the file are two different things, the file object only allocates and reserves a memory location for the file object, meaning we have to explicitly create a new file. Given that file objects are immutable, I had to have a physical file before it could be renamed. I identified this in-congruence when I was trying to delete a file as well, and making sure it actually existed, (by strategically inserting oldfile.CreateNewFile()) did the trick. Sorry guys

It seems like you might've solved your problem, but in the future you could try using Files.move(Path, Path) , which will throw an exception with details if it is unable to move/rename the files, rather than just a boolean that you get from File.renameTo(File).

tutorialspedia.com › home › java rename all files in folder

java rename all files in folder | TutorialsPedia

While developing a Java application, you may come across a scenario where you have a large number of files in a folder which don’t have required naming standards or conventions that you are in need of. In such a situation, you will wish to have a piece of code that can rename all the files…

docs.oracle.com › javase › 8 › docs › api › java › io › File.html

File (Java Platform SE 8 )

April 21, 2026 - Many aspects of the behavior of this method are inherently platform-dependent: The rename operation might not be able to move a file from one filesystem to another, it might not be atomic, and it might not succeed if a file with the destination abstract pathname already exists.

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inf.unibz.it › ~calvanese › teaching › 04-05-ip › lecture-notes › uni08 › node11.html

Renaming and deleting a file in Java

File f1 = new File("oldname.txt"); File f2 = new File("newname.txt"); boolean b = f1.renameTo(f2); // if b is true, then the file has been renamed successfully

kindlemodding.org › jailbreaking › post-jailbreak › setting-up-a-hotfix

KindleModding - Setting Up A Hotfix

If you have blocked the updates using renametobin (set to Rename), make sure to revert it beforehand (by selecting Restore), or you will not be able to install the hotfix through the Settings menu · This is not necessary for some types of legacy jailbreaks, check the corresponding page ... If you see any other files on your Kindle ending in .bin, or have a similar name to update.bin.tmp.partial, you must delete them for the hotfix to work.

tutorialspoint.com › article › rename-multiple-files-using-java

Rename multiple files using Java

July 4, 2020 - import java.io.File; import java.io.IOException; public class Demo{ public static void main(String[] argv) throws IOException{ String path_to_folder = "path\to\folder\where\multiple\files\are\present"; File my_folder = new File(path_to_folder); File[] array_file = my_folder.listFiles(); for (int i = 0; i < array_file.length; i++){ if (array_file[i].isFile()){ File my_file = new File(path_to_folder + "" + array_file[i].getName()); String long_file_name = array_file[i].getName(); String[] my_token = long_file_name.split("\s"); String new_file = my_token[1]; System.out.println(long_file_name); System.out.print(new_file); my_file.renameTo(new File(path_to_folder + "" + new_file + ".pdf")); } } } }

mkyong.com › home › java › how to rename or move a file in java

How to rename or move a file in Java - Mkyong.com

July 30, 2020 - In Java, we can use the NIO `Files.move(source, target)` to rename or move a file.

kubernetes.io › docs › concepts › configuration › configmap

ConfigMaps | Kubernetes

November 21, 2025 - A ConfigMap is an API object used to store non-confidential data in key-value pairs. Pods can consume ConfigMaps as environment variables, command-line arguments, or as configuration files in a volume. A ConfigMap allows you to decouple environment-specific configuration from your container images, so that your applications are easily portable.

Claude Platform Docs

platform.claude.com › docs › en › agents-and-tools › tool-use › memory-tool

Memory tool - Claude Platform Docs

If the path is a directory, return a "file does not exist" error. ... Deletes the directory and all its contents recursively. The tool description tells Claude it cannot delete the /memories directory itself, so reject a delete whose path is the memory root. ... Destination already exists: Return an error (do not overwrite): "Error: The destination {new_path} already exists" Renames the directory.

baeldung.xiaocaicai.com › java-how-to-rename-or-move-a-file

Rename or Move a File – Java –重命名或移动一个文件

June 25, 2014 - 在这个快速教程中，我们将学习在Java中重命名/移动一个文件。 · We’ll first look into using the Files and Path classes from NIO, then the Java File class, Google Guava, and finally the Apache Commons IO library.

coderanch.com › t › 278254 › java › File-rename-Java-API

File rename using Java API (I/O and Streams forum at Coderanch)

October 31, 2006 - You could use Runtime.exec to issue a shell command that does this, but there is no support for this in the Java class libraries. ... Presumably you know about File.renameTo(), right? It's just one file at a time, but you can always write a loop. The bigger headache is remembering to check the return value, and if it's false, figuring out why.

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OpenRocket is available as packages for Linux, macOS and Windows. A .jar file is also available, as is all of the source code. For most users, we strongly recommend using the package appropriate for your operating system. These packages contain all of the needed dependencies, including the correct version of Java.

Java Code Geeks

examples.javacodegeeks.com › home › java development › core java › io › file

Rename file/directory - Java Code Geeks

October 26, 2013 - Many aspects of the behavior of this method are inherently platform-dependent: The rename operation might not be able to move a file from one filesystem to another, it might not be atomic, and it might not succeed if a file with the destination abstract pathname already exists. The return value should always be checked to make sure that the rename operation was successful, ... package com.javacodegeeks.snippets.core; import java.io.File; public class RenameFileDirectory { public static void main(String[] args) { File file = new File("C://file.txt"); File newFile = new File("C://new_file.txt"); // Renames the file denoted by this abstract pathname.

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How to rename a file in java? - YouTube

#learnwithkrishnasandeep #javacodinginterviewquestions #javaexamples #javaprograms #javatutorials #javaprogramming how to rename a file in java,how to rena...

Published December 12, 2015

coderanch.com › t › 380528 › java › rename-file-JAVA

How to rename a file in JAVA ? (Java in General forum at Coderanch)

July 31, 2006 - FileInputStream input = new FileInputStream("file"); BufferedReader fileReader = new BufferedReader(new InputStreamReader(input)); ///// PROCESSING ///////// File destFile = new File("newfilePath"); boolean flag = file.renameTo(destFile); DO you mean to say that i need to close the fileReader ??

w3schools.com › java › java_oop.asp

Java OOP (Object-Oriented Programming)

close() delimiter() findInLine() findWithinHorizon() hasNext() hasNextBoolean() hasNextByte() hasNextDouble() hasNextFloat() hasNextInt() hasNextLine() hasNextLong() hasNextShort() locale() next() nextBoolean() nextByte() nextDouble() nextFloat() nextInt() nextLine() nextLong() nextShort() radix() reset() useDelimiter() useLocale() useRadix() Java File Methods Java FileInputStream Java FileOutputStream Java BufferedReader Java BufferedWriter Java Iterator Methods Java Collections Methods Java System Methods Java Errors & Exceptions

ExifTool by Phil Harvey

GPicSync: Windows/Linux utility to geocode photos from a GPX track log and create KML files · FlickFleck: Tool to transfer images from memory card, rotate, rename, and organize by date · Geotag: Open source Java-based geotagging application · PhotoGrok: Java-based GUI front-end for ExifTool to display images organized by any EXIF tag ·