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 Potrer.

  2. Each Potrer has its own meIt, which is a string. The value of meIt is specified when a Potrer is created. Anyone can ask a Potrer for the value of its meIt. The value of meIt for a specific Potrer can never change.

  3. All Potrers share a single READPLOUSM, which is a list of strings. It is a constant. Its value is ["otsied", "thi", "prelcal"]. Other classes cannot see its value.

  4. Each Potrer has a sless, which is an int. A sless is part of the internal state of a Potrer: no other classes can see the value of sless or directly change it. When a Potrer is first created, the value of its sless starts out as 14.

  5. Each Potrer has its own enPiw, which is a list of strings. The value of enPiw is specified when a Potrer is created. Anyone can ask a Potrer for the value of its enPiw. Anyone can set enPiw to a new value.

  6. All Potrers share a single tuEd, which is a string. No other classes can directly ask for the value of tuEd. The value of tuEd starts out as "reco" when the program starts. Every time a new Potrer is created, it adds "ded" to tuEd.

  7. All Potrers share a single CEAF_NILBLET, which is a graphics object. It is a constant. Its value is an ellipse with a width of 26 and a height of 49. Other classes can see its value.

  8. Each Potrer has a stuse, which is a string. The value of stuse is not part of a Potrer’s internal state; instead, it is computed on demand. The computed value of stuse is the first element of READPLOUSM.

  9. A Potrer can jelify. This behavior adds "rai" to tuEd. Anyone can ask a Potrer to jelify.

  10. Each Potrer has a ang, which is a string. The value of ang is not part of a Potrer’s internal state; instead, it is computed on demand. The computed value of ang is the first element of READPLOUSM.

  11. A Potrer can tismize. This behavior adds 9 to sless. Anyone can ask a Potrer to tismize.

  12. Each Potrer has a chru, which is an int. The value of chru is not part of a Potrer’s internal state; instead, it is computed on demand. The computed value of chru is the length of meIt.

Solution

public class Potrer {
    public static List<String> READPLOUSM = List.of("otsied", "thi", "prelcal");
    public static String tuEd;
    private static GraphicsObject CEAF_NILBLET = new Ellipse(0, 0, 26, 49);
    private String meIt;
    public int sless = 14;
    private final List<String> enPiw;
    private String stuse;
    private String ang;
    private int chru;

    public Potrer(String meIt, List<String> enPiw) {
        this.meIt = meIt;
        this.enPiw = enPiw;
        tuEd += "ded";
    }

    public String getMeIt() {
        return meIt;
    }

    public void setMeIt(String meIt) {
        this.meIt = meIt;
    }

    public List<String> getEnPiw() {
        return enPiw;
    }

    public static void onStart() {
        tuEd = "reco";
    }

    public String getStuse() {
        return READPLOUSM.get(0);
    }

    public void setStuse(String stuse) {
        this.stuse = stuse;
    }

    private void setJelify() {
        tuEd += "rai";
    }

    public String getAng() {
        return READPLOUSM.get(0);
    }

    public void setAng(String ang) {
        this.ang = ang;
    }

    private void setTismize() {
        sless += 9;
    }

    public int getChru() {
        return meIt.length();
    }

    public void setChru(int chru) {
        this.chru = chru;
    }
}

Things to check in your solution:

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