Question

Consider you have an inheritance hierarchy representing a FoodItem class and a Pizza class, as shown below. Assuming you create an object as follows:

Pizza myPizza = new Pizza()

What constructor(s) will be called upon object instantiation? Using your own words, explain your answer (1-2 sentences).

public class FoodItem {
   private String foodGroup;
   private double numCalories;
   
   public String getFoodGroup() { return this.foodGroup; }
   public double getNumCalories() { return this.numCalories; }
}

public class Pizza extends FoodItem {
   private String size;
}

Answer 1

Pizza myPizza = new Pizza()

There is no values inside the parenthesis Pizza()
So, It calls the default constructor.

Default constructor is automatically generated by java compiler.
It looks like
public Pizza(){
}