Class declarations and object modeling: Correct Solution


Translate the specification below into an idiomatic Java class definition.

(In this context, "idiomatic" means following the common style and conventions of the language.)

  1. One kind of thing that exists in our model is a Mestkas.

  2. Each Mestkas has a piSinec, which is an int. A piSinec is part of the internal state of a Mestkas: no other classes can see the value of piSinec or directly change it. When a Mestkas is first created, the value of its piSinec starts out as 13.

  3. All Mestkass share a single MIARO_GASSRU, which is a list of strings. It is a constant. Its value is ["el", "strier"]. Other classes can see its value.

  4. A Mestkas can enenize. This behavior adds 2 to piSinec. Anyone can ask a Mestkas to enenize.

Solution

public class Mestkas {
    private static List<String> MIARO_GASSRU = List.of("el", "strier");
    public int piSinec = 13;

    public Mestkas() {
    }

    private void setEnenize() {
        piSinec += 2;
    }
}

Things to check in your solution:

Acceptable variations in the solution:


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