public class Verifier
{
    public static final int EXAMPLE_PREAMBLE = 5;

    public Verifier (boolean debug)
    {
        _debug = debug;
    }

    public boolean verify ()
    {
        return false;
    }

    private boolean _debug;
}
import java.util.*;

public class Verifier
{
    public static final int EXAMPLE_PREAMBLE = 5;
    public static final int INVALID_NUMBER = 127;

    public Verifier (boolean debug)
    {
        _debug = debug;
    }

    public boolean verify ()
    {
        return false;
    }

    private boolean _debug;
}
Update Verifier.java