Topping

package PizzaCalories;

import java.util.HashMap;
import java.util.Map;

public class Topping {
    private String toppingType;
    private double weight;
    private final Map toppingsModifiers = new HashMap<String, Double>(){{
        put("Meat", 1.2);
        put("Veggies", 0.8);
        put("Cheese", 1.1);
        put("Sauce", 0.9);
    }};

    public Topping(String toppingType, double weight) {
        setToppingType(toppingType);
        setWeight(weight);
    }

    private void setToppingType(String toppingType) {
        if (!toppingsModifiers.containsKey(toppingType)) {
            throw new IllegalArgumentException("Cannot place " + toppingType +" on top of your pizza.");
        }


        this.toppingType = toppingType;
    }

    private void setWeight(double weight) {
        if (weight < 1 && weight > 50) {
            throw new IllegalArgumentException(toppingType + " weight should be in the range [1..50].");
        }
        this.weight = weight;
    }

    public double calculateCalories() {
        return (double)toppingsModifiers.get(this.toppingType) * (2 * this.weight);
    }
}