public interface Product { � }

public abstract class Creator
{
    public void anOperation()
    {
        Product product = factoryMethod();
    }

    protected abstract Product factoryMethod();
}

public class ConcreteProduct implements Product { � }

public class ConcreteCreator extends Creator
{
    protected Product factoryMethod()
    {
        return new ConcreteProduct();
    }
}

public class Client
{
    public static void main( String arg[] )
    {
        Creator creator = new ConcreteCreator();
        creator.anOperation();
    }
}