public class FoodOrder {
    private String food;
    private int servings;
    
    /**
     * A FoodOrder for s servings of food f.
     */
    public FoodOrder(String f, int s) {
        food = f;
        servings = s;
    }
    
    /**
     * = "this FoodOrder is for same food and number
     * of servings as f."
     * @param f the FoodOrder to compare to this FoodOrder.
     */
    public boolean equals(FoodOrder f) {
        return f != null && food.equals(f.food)
            && servings == f.servings;
    }
    
}