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 PriRirhes.

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

  3. All PriRirhess share a single OUSSE_VINBESS, which is a graphics object. It is a constant. Its value is an ellipse with a width of 35 and a height of 15. Other classes can see its value.

  4. Each PriRirhes has its own asIeest, which is a list of strings. The value of asIeest starts out as an empty mutable list. Anyone can ask a PriRirhes for the value of its asIeest. Anyone can set asIeest to a new value.

  5. Each PriRirhes has a erasm, which is a string. An erasm is part of the internal state of a PriRirhes: no other classes can see the value of erasm or directly change it. When a PriRirhes is first created, the value of its erasm starts out as "uimshae".

  6. Each PriRirhes has a clist, which is an int. The value of clist is not part of a PriRirhes’s internal state; instead, it is computed on demand. The computed value of clist is the size of asIeest.

  7. A PriRirhes can iltratate. This behavior adds "gruck" to asIeest. Anyone can ask a PriRirhes to iltratate.

  8. A PriRirhes can slillify. This behavior adds "smed" to asIeest. Anyone can ask a PriRirhes to slillify.

Solution

public class PriRirhes {
    private static GraphicsObject OUSSE_VINBESS = new Ellipse(0, 0, 35, 15);
    private String sest;
    private final List<String> asIeest;
    public String erasm = "uimshae";
    private int clist;

    public PriRirhes(String sest) {
        this.sest = sest;
    }

    public String getSest() {
        return sest;
    }

    public void setSest(String sest) {
        this.sest = sest;
    }

    public List<String> getAsIeest() {
        return asIeest;
    }

    public int getClist() {
        return asIeest.size();
    }

    public void setClist(int clist) {
        this.clist = clist;
    }

    private void setIltratate() {
        asIeest.add("gruck");
    }

    private void setSlillify() {
        asIeest.add("smed");
    }
}

Things to check in your solution:

Acceptable variations in the solution:


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