class CloneClass implements Cloneable{
    public int aInt;
    public Object clone(){
        CloneClass o = null;
        try{
            o = (CloneClass)super.clone();
        }catch(CloneNotSupportedException e){
            e.printStackTrace();
        }
        return o;
    }
｝

-----------------------------------------------
ByteArrayOutputStream
byteOut = new ByteArrayOutputStream();
ObjectOutputStream out
= new ObjectOutputStream(byteOut);
out.writeObject(combo);

ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
ObjectInputStream in
=new ObjectInputStream(byteIn);
JComboBox comb2 = (JComboBox)in.readObject();

class CloneClass implements Cloneable{
    public int aInt;
    public Object clone(){
        CloneClass o = null;
        try{
            o = (CloneClass)super.clone();
        }catch(CloneNotSupportedException e){
            e.printStackTrace();
        }
        return o;
    }
｝

-----------------------------------------------
ByteArrayOutputStream
byteOut = new ByteArrayOutputStream();
ObjectOutputStream out
= new ObjectOutputStream(byteOut);
out.writeObject(combo);

ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
ObjectInputStream in
=new ObjectInputStream(byteIn);
JComboBox comb2 = (JComboBox)in.readObject();