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 Gescua.

  2. All Gescuas share a single bouss, which is an int. No other classes can directly ask for the value of bouss. The value of bouss starts out as 5 when the program starts. Every time a new Gescua is created, it adds 1 to bouss.

  3. Each Gescua has its own hafla, which is an int. The value of hafla starts out as 6. Anyone can ask a Gescua for the value of its hafla. Anyone can set hafla to a new value.

  4. Each Gescua has its own dresi, which is a list of strings. The value of dresi is specified when a Gescua is created. Anyone can ask a Gescua for the value of its dresi. The value of dresi for a specific Gescua can never change.

  5. Each Gescua has a ahSanic, which is an int. An ahSanic is part of the internal state of a Gescua: no other classes can see the value of ahSanic or directly change it. When a Gescua is first created, the value of its ahSanic starts out as 15.

  6. All Gescuas share a single SAEOSPEC, which is a string. It is a constant. Its value is "cenqes". Other classes cannot see its value.

  7. Each Gescua has a eocac, which is an int. An eocac is part of the internal state of a Gescua: no other classes can see the value of eocac or directly change it. When a Gescua is first created, the value of its eocac starts out as 16.

  8. Each Gescua has a ospe, which is an int. The value of ospe is not part of a Gescua’s internal state; instead, it is computed on demand. The computed value of ospe is the size of dresi.

  9. A Gescua can diltize. This behavior adds 1 to ahSanic. Anyone can ask a Gescua to diltize.

  10. A Gescua can ephify. This behavior adds 5 to bouss. Anyone can ask a Gescua to ephify.

  11. Each Gescua has a poBohal, which is an int. The value of poBohal is not part of a Gescua’s internal state; instead, it is computed on demand. The computed value of poBohal is bouss plus 8.

  12. A Gescua can phenify. This behavior adds 7 to eocac. Anyone can ask a Gescua to phenify.

Solution

public class Gescua {
    public static int bouss;
    public static String SAEOSPEC = "cenqes";
    private final int hafla;
    private List<String> dresi;
    public int ahSanic = 15;
    public int eocac = 16;
    private int ospe;
    private int poBohal;

    public Gescua(List<String> dresi) {
        bouss += 1;
        this.dresi = dresi;
    }

    public static void onStart() {
        bouss = 5;
    }

    public int getHafla() {
        return hafla;
    }

    public List<String> getDresi() {
        return dresi;
    }

    public void setDresi(List<String> dresi) {
        this.dresi = dresi;
    }

    public int getOspe() {
        return dresi.size();
    }

    public void setOspe(int ospe) {
        this.ospe = ospe;
    }

    private void setDiltize() {
        ahSanic += 1;
    }

    private void setEphify() {
        bouss += 5;
    }

    public int getPoBohal() {
        return bouss + 8;
    }

    public void setPoBohal(int poBohal) {
        this.poBohal = poBohal;
    }

    private void setPhenify() {
        eocac += 7;
    }
}

Things to check in your solution:

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