/**
 * Data stored in a vector
 */
import java.io.*;
import java.util.*;

public class DataVector implements Aggregate {
 private Vector data = new Vector();
 
 public DataVector(String fileName) {
 try {
 BufferedReader f = new BufferedReader(new FileReader(fileName));
 String s = f.readLine();
 while(s != null) {
 if(s.trim().length() > 0) {
 data.add(s);
 }
 s = f.readLine();
 }
 f.close();
 } catch (FileNotFoundException e) {
 System.out.println("Can not find such file !");
 } catch (IOException e) {
 System.out.println("I/O Error !");
 System.exit(0);
 }
 }
 
 public Iterator CreateIterator() {
 return new VectorIterator(data);
 }
 
}