package apusic.myshop.upload;import java.io.IOException;import java.util.*;// Referenced classes of package com.jspsmart.upload://            File, SmartUploadpublic class Files{    private SmartUpload m_parent;    private Hashtable m_files;    private int m_counter;    Files()    {        m_files = new Hashtable();        m_counter = 0;    }    protected void addFile(File newFile)    {        if(newFile == null)        {            throw new IllegalArgumentException("newFile cannot be null.");        } else        {            m_files.put(new Integer(m_counter), newFile);            m_counter++;            return;        }    }    public File getFile(int index)    {        if(index < 0)            throw new IllegalArgumentException("File's index cannot be a negative value (1210).");        File retval = (File)m_files.get(new Integer(index));        if(retval == null)            throw new IllegalArgumentException("Files' name is invalid or does not exist (1205).");        else            return retval;    }    public int getCount()    {        return m_counter;    }    public long getSize()        throws IOException    {        long tmp = 0L;        for(int i = 0; i < m_counter; i++)            tmp += getFile(i).getSize();        return tmp;    }    public Collection getCollection()    {        return m_files.values();    }    public Enumeration getEnumeration()    {        return m_files.elements();    }}