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

public class Verifier
{
    public static final String EXAMPLE1_FILE = "example1.txt";
    public static final int TOTAL_ORE_1 = 31;
    public static final String EXAMPLE2_FILE = "example2.txt";
    public static final int TOTAL_ORE_2 = 165;
    public static final String EXAMPLE3_FILE = "example3.txt";
    public static final int TOTAL_ORE_3 = 13312;
    public static final String EXAMPLE4_FILE = "example4.txt";
    public static final int TOTAL_ORE_4 = 180697;
    public static final String EXAMPLE5_FILE = "example5.txt";
    public static final int TOTAL_ORE_5 = 2210736;

    public Verifier (boolean debug)
    {
        _debug = debug;

        _theParser = new Parser(debug);
    }

    public final boolean verify ()
    {
        Vector<Reaction> reactions = _theParser.loadData(EXAMPLE1_FILE);
        Enumeration<Reaction> iter = reactions.elements();

        while (iter.hasMoreElements())
            System.out.println(iter.nextElement());
            
        return false;
    }

    private boolean _debug;
    private Parser _theParser;
}
import java.util.*;
import java.io.*;

public class Verifier
{
    public static final String EXAMPLE1_FILE = "example1.txt";
    public static final int TOTAL_ORE_1 = 31;
    public static final String EXAMPLE2_FILE = "example2.txt";
    public static final int TOTAL_ORE_2 = 165;
    public static final String EXAMPLE3_FILE = "example3.txt";
    public static final int TOTAL_ORE_3 = 13312;
    public static final String EXAMPLE4_FILE = "example4.txt";
    public static final int TOTAL_ORE_4 = 180697;
    public static final String EXAMPLE5_FILE = "example5.txt";
    public static final int TOTAL_ORE_5 = 2210736;

    public Verifier (boolean debug)
    {
        _debug = debug;

        _theParser = new Parser(debug);
    }

    public final boolean verify ()
    {
        Vector<Reaction> reactions = _theParser.loadData(EXAMPLE1_FILE);
        Enumeration<Reaction> iter = reactions.elements();

        System.out.println("**size "+reactions.size());
        
        while (iter.hasMoreElements())
            System.out.println(iter.nextElement());

        return false;
    }

    private boolean _debug;
    private Parser _theParser;
}
Update Verifier.java