how to rename file in java

1// rename file in java example
2import java.io.*;
3public class RenameFile
4{
5   public static void main(String[] args) throws IOException
6   {
7      File oldFile = new File("D:\\Project\\flower.txt");
8      File newFile = new File("D:\\Project\\flowerbrackets.txt");
9      if(oldFile.renameTo(newFile))
10      {
11         System.out.println("Rename successful");
12      }
13      else
14      {
15         System.out.println("Rename failed");
16      }
17   }
18}