File Splitter in Java

The following program takes a file as input and splits this file into many files at the same location where the original file was located.

The size of the new Files created is also taken from the user. 

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import java.io.*;

class FileSplitter

{

     public static void main(String args[])

     {

           try

           {

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

                System.out.println("Enter the name of file to be splitted with absolute path : ");

                File f0=new File(br.readLine());

                // f0 contains the file to be splitted

               

                System.out.println("Enter the number of bytes in which file will be splitted : ");

                int n=Integer.parseInt(br.readLine());

                // n contains the size of new files created after splitting

                int numberOfFiles;

                if(f0.length()%n==0)

                     numberOfFiles=(int)f0.length()/n;

                else

                     numberOfFiles=(int)f0.length()/n+1;

                    

                File f[]=new File[numberOfFiles];

                for(int i=0;i<f.length;i++)

                {

                     f[i]=new File(f0.getParent()+"//f"+(i+1));

                     f[i].createNewFile();

                }

               

                FileOutputStream fos=new FileOutputStream(f[0]);

                FileInputStream fis=new FileInputStream(f0);

               

                int counter=0,fileCounter=0;

                int ch;

               

                while((ch=fis.read())!=-1)

                {

                     if(counter%n==0)

                     {

                           fos=new FileOutputStream(f[fileCounter]);

                           fileCounter++;

                     }

                     fos.write(ch);

                     counter++;

                }

                fis.close();

                /* you should close the fis fileInputStream in order to delete the file.*/

                System.out.println("Original File Deleted : "+f0.delete());

                fos.close();

                System.out.println("\nfile splitting done successfully...");

           }

           catch(IOException e)

           {

                System.out.println(e);

           }

     }

}

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