/*

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*/

/**

*

* @author Parth Joshi

*/

import java.io.*;

import java.util.*;

public class Seq_Enum {

/**

* @param args the command line arguments

*/

public static void main(String[] args) {

try{

FileInputStream fin=new FileInputStream("a.txt");

FileInputStream fin2=new FileInputStream("b.txt");

FileInputStream fin3=new FileInputStream("c.txt");

FileInputStream fin4=new FileInputStream("d.txt");

Vector v=new Vector();

v.add(fin);

v.add(fin2);

v.add(fin3);

v.add(fin4);

Enumeration e=v.elements();

SequenceInputStream bin=new SequenceInputStream(e);

int i=0;

while((i=bin.read())!=-1){

System.out.print((char)i);

}

bin.close();

fin.close();

fin2.close();

}catch(IOException e){

e.printStackTrace();

}

}

}