package ch10.section06;

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);
  }

}