Rename the File or Directory in Java
Introduction
In this section, you will see that how a file or directory is renamed. This program illustrates you
the procedure of doing so. Through this
program you can easily rename any type of the file or directory. If you mention
the directory (path) with the new file or directory name to rename the old file
or directory which has to be renamed then the file or directory will be moved
from it's own directory to the specified new directory otherwise file or
directory will be moved from it's own directory to the default directory where
your program has been running. This program also tells you about the
availability of the specified file or directory which has to be renamed.
The method renameTo(new_file_instance)
can be used to rename the appropriate file or directory. Method renameTo()
renames the specified file or directory and returns a boolean value (true or false). Syntax of the
renameTo() method used in this program :
oldfile.renameTo(newfile)
oldfile : oldfile is the created instance of the
File class for holding the specified file or
directory name which has to be renamed in the file format.
newfile : newfile is also the instance of File
class, which is the new name of file or directory
There are no any typical logic has been used in this program. Simply this
program first reads the file or directory name which has to be renamed and then
check whether the specified file or directory exists or not. If the specified
file or directory exists then the program renames that file or directory into the
name specified as parameter to the renameTo()
method.
Here is the code of the program :
import java.io.*;
public class RenameFileOrDir{
public static void main(String[] args) throws IOException{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Please enter the file or directory
name which has to be Renamed : ");
String old_name = in.readLine();
File oldfile = new File(old_name);
if(!oldfile.exists())
{
System.out.println("File or directory does not exist.");
System.exit(0);
}
System.out.print("please enter the new file or directory name : ");
String new_name = in.readLine();
File newfile = new File(new_name);
System.out.println("Old File or directory name : "+ oldfile);
System.out.println("New File or directory name : "+ newfile);
boolean Rename = oldfile.renameTo(newfile);
if(!Rename)
{
System.out.println("File or directory does not rename successfully.");
System.exit(0);
}
else {
System.out.println("File or directory rename is successfully.");
}
}
}
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Current Comments
4 comments so far (post your own) View All Comments Latest 10 Comments:I am embedded software developer for ASML in Wilton, Connecticut. This example was very helpful.
Ed Chen
Connecticut, USA
Posted by Ed Chen on Saturday, 03.1.08 @ 21:51pm | #50877
Hi
This topics having some error so you please help how it will work
Posted by palani on Wednesday, 08.29.07 @ 22:16pm | #24444
The program that you have specified is not properly executed under windows, i have tried most of the program like you you have mention all are not able to rename the file ...... can you specify any alternative to rename the file
Posted by Rahul Kandurwar on Tuesday, 05.8.07 @ 14:45pm | #15450
very nice solution to my problem at this moment of hurry
Posted by preeti on Monday, 11.27.06 @ 22:09pm | #157