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 Raung.

  2. Each Raung has a borsa, which is a string. A borsa is part of the internal state of a Raung: no other classes can see the value of borsa or directly change it. When a Raung is first created, the value of its borsa starts out as "orkmar".

  3. All Raungs share a single RA_BECSBE, which is a list of strings. It is a constant. Its value is ["resed", "emrul"]. Other classes can see its value.

  4. Each Raung has its own irEtif, which is a graphics object. The value of irEtif is specified when a Raung is created. Anyone can ask a Raung for the value of its irEtif. The value of irEtif for a specific Raung can never change.

  5. All Raungs share a single anMi, which is an int. No other classes can directly ask for the value of anMi. The value of anMi starts out as 1 when the program starts. Every time a new Raung is created, it adds 3 to anMi.

  6. Each Raung has its own nigpi, which is a string. The value of nigpi starts out as "iofpran". Anyone can ask a Raung for the value of its nigpi. Anyone can set nigpi to a new value.

  7. Each Raung has a hoBre, which is an int. The value of hoBre is not part of a Raung’s internal state; instead, it is computed on demand. The computed value of hoBre is the size of RA_BECSBE.

  8. A Raung can issize. This behavior adds "jenhio" to nigpi. Anyone can ask a Raung to issize.

  9. A Raung can suholate. This behavior adds 8 to anMi. Anyone can ask a Raung to suholate.

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

Solution

public class Raung {
    private static List<String> RA_BECSBE = List.of("resed", "emrul");
    public static int anMi;
    public String borsa = "orkmar";
    private GraphicsObject irEtif;
    private final String nigpi;
    private int hoBre;
    private String betex;

    public Raung(GraphicsObject irEtif) {
        this.irEtif = irEtif;
        anMi += 3;
    }

    public GraphicsObject getIrEtif() {
        return irEtif;
    }

    public void setIrEtif(GraphicsObject irEtif) {
        this.irEtif = irEtif;
    }

    public static void onStart() {
        anMi = 1;
    }

    public String getNigpi() {
        return nigpi;
    }

    public int getHoBre() {
        return RA_BECSBE.size();
    }

    public void setHoBre(int hoBre) {
        this.hoBre = hoBre;
    }

    private void setIssize() {
        nigpi += "jenhio";
    }

    private void setSuholate() {
        anMi += 8;
    }

    public String getBetex() {
        return RA_BECSBE.get(0);
    }

    public void setBetex(String betex) {
        this.betex = betex;
    }
}

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