Write a program to copy a file to another file using java.io package classes. Get the file names at run time and if the target file existed then ask confirmation to overwrite and take necessary actions.?

♣♣♣ WRITE A PROGRAM TO COPY A FILE TO ANOTHER FILE USING JAVA.IO PACKAGE CLASSES. GET THE FILE NAMES AT RUN TIME AND IF THE TARGET FILE EXISTED THEN ASK CONFIRMATION TO OVERWRITE AND TAKE NECESSARY ACTIONS. ♣♣♣

import java.lang.*;

import java.io.*;

class pro13

{

        public static void main(String ar[]) throws IOException

        {

               InputStreamReader a =new InputStreamReader(System.in);

               BufferedReader b=new BufferedReader(a);

                int i;

                FileInputStream fin=null;

                FileOutputStream fout=null;

                String filename=null;

                try

                {

                        System.out.print("\n\tEnter the file name to copy to another file : ");

                        filename=b.readLine();

                        try

                        {

                                fin=new FileInputStream(filename);

                        }

                        catch(Exception e)

                        {

                                System.out.println("\n\tFile Not Found");

                                return;

                        }

                        try

                        {

                                System.out.print("\n\tEnter the file name to copy : ");

                                filename=b.readLine();

                                fout=new FileOutputStream(filename);

                        }

                        catch(Exception e)

                        {}

                }

                catch(Exception e)

                {}

                try

                {

                        do

                        {

                                i=fin.read();

                                if(i!=-1)

                                fout.write(i);

                        }while(i!=-1);

                       

System.out.println("\n\tFile copied to "+filename+" Sucessfully");

                }

                catch(IOException e)

                {

                        System.out.println("\n\tFile Error");

                }

                fin.close();

                fout.close();

        }

}

OUTPUT :-

                                   

                        Enter the file name to copy to another file : c:\test.txt

                       

                        Enter the file name to copy : c:\hello.txt

                        File copied to c:\hello.txt successfully

                       

                        Enter the file name to copy to another file : c:\tests.txt

                        File Not Found