Split and join back a binary file in java

Question

I am trying to divide a binary file (like video/audio/image) into chunks of 100kb each and then join those chunks back to get back the original file. My code seems to be wor

Answer 1

It takes split file name & destination file size(in byte) form user and split it into subfiles its working for all type of files like(.bin,.jpg,.rar)

import java.io.*;
class split{
public static void main(String args[])throws IOException {
String a;
int b;
long len;
Console con=System.console();
System.out.println("Enter File Name: ");
File f=new File(con.readLine());
System.out.println("Enter Destination File Size: ");  
b=Integer.parseInt(con.readLine());
FileInputStream fis=new FileInputStream(f);
len=f.length();
int c=(int)len/b;
if(((int)len%b)!=0)
c++;
for(int i=0;i

and another program will merge all the split files.It take only split file name and merge all the files.

import java.io.*;
class merge{
static int i;
public static void main(String args[])throws IOException{
String a;
int b;
long len;
Console con=System.console();
System.out.println("Enter File to be retrived: ");
File f=new File(con.readLine());
FileOutputStream fos=new FileOutputStream(f,true);
try {
File f1=new File(i+""+"."+f);
while((f1.exists())!=false) {
int ch;
FileInputStream fis=new FileInputStream(i+""+"."+f);
i++;
while((ch=fis.read())!=-1){
fos.write(ch);  }}}
catch(FileNotFoundException e1){} }}