File Splitter

Here is a file splitter made in java . try it with files. Don't try it with directory. It will not respond in the way u want.
Splitter class

Code:

import java.io.*;

class Splitter
{
	public static void main(String[] args) throws IOException
	{
		takeInput(args);
	}

	static void takeInput(String[] args) throws IOException
	{
		String str;
		String assembledFileName;
		int splitLength;

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

		try
		{
			if(args.length==0)
			{
				System.out.println("Enter the filename:");
				str=br.readLine();
				System.out.println("Enter the name of the file after assembling(without extension):");
				assembledFileName=br.readLine();
				System.out.println("Enter the split size:");
				splitLength=Integer.parseInt(br.readLine());


				SplitFiles ob1=new SplitFiles(str,splitLength);

				SplitListOnly ob2=new SplitListOnly(str,assembledFileName);
				ob2.batchFileMaker();
			}
			else if(args.length>1)
			{
				System.out.println("Invalid arguments.");
				System.exit(1);
			}
		}
		catch(NumberFormatException e)
		{
			System.out.println("Problem in number format...");
			e.printStackTrace();
		}
	}
}

SplitListOnly class

Code:

import java.io.*;
import java.util.*;

class SplitListOnly
{
	File f1;
	File f2;
	String[] s;
	String str;
	String assembledFileName;
	SplitListOnly(String fileName,String assembledFileName) throws IOException
	{
		try
		{
			f1=new File(fileName);
			f2=new File(f1.getParent());
			this.assembledFileName=assembledFileName;
			FilenameFilter only=new OnlyExt("spt",f1.getName());

			s=f2.list(only);
		}
		catch(Exception e)
		{
			System.out.println("Exception occurred in SplitListOnly(String fileName,String assembledFileName) constructor.");
			e.printStackTrace();
		}
	}

	void batchFileMaker()
	{
		try
		{
			FileWriter fw=new FileWriter(f2.getPath()+"\\"+"Assemble.bat");
			fw.write("@echo off\n");
			fw.write("copy /B ");
			for(int i=0;i<s.length;i++)
			{
				str=new String(f1.getPath()+"."+(i+1)+".spt");
				fw.write(str);
				if((i+1)<s.length)
					fw.write("+");

			}
			str=(f1.getName()).substring((f1.getName()).indexOf(".")+1,(f1.getName()).length());
			fw.write(" "+f2.getPath()+"\\"+assembledFileName+"."+str);
			fw.write("\necho The files have been assembelled successfully..........");
			fw.write("\npause");
			fw.close();
		}
		catch(Exception e)
		{
			System.out.println("Exception occurred in void batchFileMaker() method.");
			e.printStackTrace();
		}
	}
}

SplitFiles class to split the files

Code:

import java.io.*;


class SplitFiles
{
	FileInputStream fin;
	FileOutputStream fout;
	int len;
	int splitlen;
	String str;

	SplitFiles(String fileName,int splitlength)
	{
		try
		{
			fin=new FileInputStream(fileName);
			str=fileName;
			len=0;
			splitlen=splitlength;
			Split();

		}
		catch(FileNotFoundException e)
		{
			System.out.println("File not found.");
		}
		catch(IOException e)
		{
			System.out.println("IOException generated");
		}
	}
	void Split()
	{

		try
		{
			int i=0;
			FileInputStream fin=new FileInputStream(str);
			int c=fin.read();
			while(c!=-1)
			{
				FileOutputStream fw=new FileOutputStream(str+"."+(i+1)+".spt");
				while(c!=-1 && len<splitlen)
				{
					fw.write(c);
					c=fin.read();
					len++;
				}
				len=0;
				fw.close();
				i++;
			}

		}
		catch(Exception e)
		{
			System.out.println("gg");
			e.printStackTrace();
		}
	}

}

OnlyExt filters the file from folders and other objects like Shortcuts / links / Special folders.

Code:

import java.io.*;

public class OnlyExt implements FilenameFilter
{
	String ext,fileName;

	OnlyExt(String ext,String fileName)
	{
		try
		{
			this.ext="."+ext;
			this.fileName=fileName;
		}
		catch(Exception e)
		{
			System.out.println("Exception occurred in OnlyExt(String ext,String fileName) +construcctor.");
		}
	}
	public boolean accept(File dir,String name)
	{
		return name.endsWith(ext) && name.startsWith(fileName);

	}

}

Included in the attachment the class files as well.

 

Hey I searched on net using the keywords related to File splitter program and the results were all utilities and other stuff to split the file and finally when I searched here found this. It really helped but I always had the feeling Google is the best way to find the things but today I have proved my opinon wrong