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 CesStanher.

  2. All CesStanhers share a single hiPiou, which is a graphics object. No other classes can directly ask for the value of hiPiou. The value of hiPiou starts out as a rectangle with a width of 13 and a height of 11 when the program starts. Every time a new CesStanher is created, it moves hiPiou to the right by 6 pixels (using the moveBy method).

  3. All CesStanhers share a single DIPEO_FASUSS, which is a list of strings. It is a constant. Its value is ["sutpre", "boltru", "e"]. Other classes can see its value.

  4. Each CesStanher has its own nipre, which is an int. The value of nipre is specified when a CesStanher is created. Anyone can ask a CesStanher for the value of its nipre. Anyone can set nipre to a new value.

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

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

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

  8. Each CesStanher has a sined, which is an int. The value of sined is not part of a CesStanher’s internal state; instead, it is computed on demand. The computed value of sined is nipre plus 8.

  9. A CesStanher can prucify. This behavior adds 1 to nipre. Anyone can ask a CesStanher to prucify.

  10. A CesStanher can otiudify. This behavior moves hiPiou to the right by 6 pixels (using the moveBy method). Anyone can ask a CesStanher to otiudify.

  11. Each CesStanher has a epste, which is a string. The value of epste is not part of a CesStanher’s internal state; instead, it is computed on demand. The computed value of epste is meir with two exclamation points appended.

  12. Each CesStanher has a paPoo, which is an int. The value of paPoo is not part of a CesStanher’s internal state; instead, it is computed on demand. The computed value of paPoo is the x position of hiPiou.

Solution

public class CesStanher {
    public static GraphicsObject hiPiou;
    private static List<String> DIPEO_FASUSS = List.of("sutpre", "boltru", "e");
    private final int nipre;
    private String sqo;
    public String meir = "i";
    private GraphicsObject olCa;
    private int sined;
    private String epste;
    private int paPoo;

    public CesStanher(int nipre, String sqo, GraphicsObject olCa) {
        hiPiou.moveBy(6, 0);
        this.nipre = nipre;
        this.sqo = sqo;
        this.olCa = olCa;
    }

    public static void onStart() {
        hiPiou = new Rectangle(0, 0, 13, 11);
    }

    public int getNipre() {
        return nipre;
    }

    public String getSqo() {
        return sqo;
    }

    public void setSqo(String sqo) {
        this.sqo = sqo;
    }

    public GraphicsObject getOlCa() {
        return olCa;
    }

    public void setOlCa(GraphicsObject olCa) {
        this.olCa = olCa;
    }

    public int getSined() {
        return nipre + 8;
    }

    public void setSined(int sined) {
        this.sined = sined;
    }

    private void setPrucify() {
        nipre += 1;
    }

    private void setOtiudify() {
        hiPiou.moveBy(6, 0);
    }

    public String getEpste() {
        return meir + "!!";
    }

    public void setEpste(String epste) {
        this.epste = epste;
    }

    public int getPaPoo() {
        return hiPiou.getX();
    }

    public void setPaPoo(int paPoo) {
        this.paPoo = paPoo;
    }
}

Things to check in your solution:

Acceptable variations in the solution:


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