This little program demonstrate how to rename a file in Java. The code
- Takes original file name and renamed file name as parameter
- Checks whether the file exists
- Checks whether the input file provided is a directory
- Renames a file if it exists and is not a directory
- Throws an error if problem occurs renaming the file.
package com.kushal.utils;
/**
* @author Kushal Paudyal
* www.sanjaal.com/java
* Last Modified On 05-04-2009
*
* Demonstrate the process of renaming a file in Java
*/
import java.io.File;
public class FileRenameInJava {
public static void renameFile(String originalFileName,
String renamedFileName) {
File originalFile = new File(originalFileName);
/**
* Check if file exists
*/
boolean fileExists = originalFile.exists();
/**
* Check if it is a directory
*/
boolean isDirectory = originalFile.isDirectory();
/**
* If file does not exist, return
*/
if (!fileExists) {
System.out.println("File does not exist: " + originalFileName);
System.out.println("Rename Operation Aborted.");
return;
}
/**
* If file is a directory, return
*/
if (isDirectory) {
System.out
.println("The parameter you have provided is a directory: "
+ originalFileName);
System.out.println("Rename Operation Aborted.");
return;
}
File renamedFile = new File(renamedFileName);
boolean renamed = originalFile.renameTo(renamedFile);
if (renamed) {
System.out.println("File Has Been Renamed Successfully.");
System.out.println("Original File Name: " + originalFileName);
System.out.println("Rename File Name: " + renamedFileName);
} else {
System.out
.println("Error occurred while trying to rename the file.");
}
}
public static void main(String[] args) {
renameFile("C:/Temp/def.txt", "C:/Temp/abc.txt");
}
}
———————-
Here is the sample output:
File Has Been Renamed Successfully. Original File Name: C:/Temp/def.txt Rename File Name: C:/Temp/abc.txt
Originally posted 2009-05-14 15:06:44.
