Renaming and deleting text files
 

I have made this delete class of my address book program.
It gives an error when I use the renameTo() function.
Please look into my program.

import java.io.*;

import java.util.*;

class del

{



        private String stru,strf;

        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

        public void calc()throws IOException

        {

                System.out.println("enter record to be deleted");

                stru=br.readLine();



                BufferedReader in=new BufferedReader(new FileReader("adbk.txt"));



                File fi=new File("tadbk.txt");



                PrintWriter p=new PrintWriter(new FileWriter("tadbk.txt",true));



                while((strf=in.readLine())!=null)

                {

                        if(stru==strf)

                        {

                                continue;

                        }

                        else

                        {

                                p.println(strf);

                        }

                }

                p.close();

                fi.renameTo("adbk.txt");//gives error here

                fi.delete();

        }

}

Please tell me how to go about it.
Thanks in advance.

Re: Renaming and deleting text files
 

Here is part of description of this function, given by java help:
public boolean renameTo(File dest)

It asks a File as parameter, but you give String to it.

Re: Renaming and deleting text files
 

http://java.sun.com/javase/6/docs/ap...(java.io.File)

Check that out. It's expecting a file, not a string. It seems like you need to create a new file with a filename of what you want to rename the file to and pass that into renameTo().

Re: Renaming and deleting text files
 

Whoops, too slow. Check out the javadocs though, it might be helpful in explaining what you need to do.