Serializing objects

[kev670]

I'm trying to serialize java objects but i keep getting a list of errors. my program accepts multiple values and creates an instance of a class with them. the created object then gets stored in a StorageSystem class... it looks something like this

    aCD = new CD(title, artist, playTime, numOfTracks);
    store.addItem(aCD);

Then in the storage system i add the stored object to an arrayList... what i also want to do is add the object to a serialized file... my method for doing this is below... Am i going about this the wrong way. thanks...

public void addItem(Item hold)                      // adds object to the ArrayList
{
    itemList.add(hold);

    totalStored++;

    try
    {
        FileOutputStream fout = new FileOutputStream("thequeue.ser");
        ObjectOutputStream oos = new ObjectOutputStream(fout);
        oos.writeObject(hold);
        oos.close();
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}

This is the entire class:

package jukebox;

import java.util.ArrayList;
import java.io.*;
public class StorageSystem implements Serializable
{
    ArrayList<Item> itemList = new ArrayList<Item>();   // sets up an array list

    private int totalStored;                            // keeps track of the number of stored items

    public StorageSystem(int totalStored)               // constructor, gets set to 0
    {
        this.totalStored = totalStored;
    }

    public void addItem(Item hold)                      // adds object to the ArrayList
    {
        itemList.add(hold);

        totalStored++;


        try
        {
            FileOutputStream fout = new FileOutputStream("thequeue.ser");
            ObjectOutputStream oos = new ObjectOutputStream(fout);
            oos.writeObject(hold);
            oos.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}

[JosAH]

This may be a stupid question but does your Item class implement the Serializable interface?

kind regards,

Jos