We should use constants as descriptive variable name to initialize the default value of some field?

I'm doing different examples of the book Head First Design Patterns.

I found an implementation that has this structure (extracted from the book):

public abstract class Pizza {
    String name;
    String dough;
    String souce;

    List<String> toppings = new ArrayList<>();

    //another methods ....

    public String getName() {
         return name;
    }
 }

Example of concrete class (extracted from the book):

public class NYStyleCheesePizza extends Pizza {
    public NYStyleCheesePizza() {
        name = "NY Style Sauce and Cheese Pizza";
        dough = "Thin Crust Dough";
        souce = "Marina Souce";
        toppings.add("Grated Regiano Cheese");
    }
    .......
}

Example of concrete class with my modification :

 public class NYStyleCheesePizza extends Pizza {
    private static final String DEFAULT_NAME = "NY Style Sauce and Cheese Pizza";
    private static final String DEFAULT_DOUGH = "Thin Crust Dough";
    private static final String DEFAULT_SOUCE = "Marina Souce";

    public NYStyleCheesePizza() {
        name = DEFAULT_NAME;
        dough = DEFAULT_DOUGH;
        souce = DEFAULT_SOUCE;
        toppings.add("Grated Regiano Cheese");
    } 
 ......
}

In relation with my modification, I have this question :

We should use constants as descriptive variable name to initialize the default value of some field ?