The SequenceInputStream Class : Enumeration Interface « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. Enumeration Interface

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.SequenceInputStream;
import java.util.Enumeration;
import java.util.Vector;

public class MainClass {
  public static void main(String args[]) throws Exception {
    Vector v = new Vector(3);
    v.add(new FileInputStream("/a/b"));
    v.add(new FileInputStream("yourfile.bar"));
    v.add(new FileInputStream("/yourfile.txt"));

    Enumeration e = v.elements();
    SequenceInputStream sis = new SequenceInputStream(e);
    InputStreamReader isr = new InputStreamReader(sis);
    BufferedReader br = new BufferedReader(isr);
    String line;
    while ((line = br.readLine()) != null) {
      System.out.println(line);
    }
    br.close();
  }
}