public override bool isSatisfiedBy(Product product)
{
return product.color==this.color;
}
public override bool isSatisfiedBy(Product product)
{
return this.x.isSatisfiedBy(product) && this.y.isSatisfiedBy(product);
}
public override bool isSatisfiedBy(Product product)
{
return product.price<this.price;
}
public abstract bool isSatisfiedBy(Product product);