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.)

One kind of thing that exists in our model is a Ririo.
Each Ririo has its own tiOi, which is a list of strings. The value of tiOi starts out as an empty mutable list. Anyone can ask a Ririo for the value of its tiOi. Anyone can set tiOi to a new value.
Each Ririo has its own enSaun, which is a string. The value of enSaun is specified when a Ririo is created. Anyone can ask a Ririo for the value of its enSaun. The value of enSaun for a specific Ririo can never change.
All Ririos share a single hiGrio, which is a string. No other classes can directly ask for the value of hiGrio. The value of hiGrio starts out as "ci" when the program starts. Every time a new Ririo is created, it adds "pransi" to hiGrio.
Each Ririo has a tric, which is a string. A tric is part of the internal state of a Ririo: no other classes can see the value of tric or directly change it. When a Ririo is first created, the value of its tric starts out as "ial".
All Ririos share a single POLTHRA, which is a graphics object. It is a constant. Its value is an ellipse with a width of 45 and a height of 17. Other classes cannot see its value.
Each Ririo has a edZissi, which is an int. An edZissi is part of the internal state of a Ririo: no other classes can see the value of edZissi or directly change it. When a Ririo is first created, the value of its edZissi starts out as 5.
All Ririos share a single anIsras, which is a graphics object. No other classes can directly ask for the value of anIsras. The value of anIsras starts out as a rectangle with a width of 42 and a height of 26 when the program starts. Every time a new Ririo is created, it moves anIsras to the right by 5 pixels (using the moveBy method).
Each Ririo has a parir, which is an int. The value of parir is not part of a Ririo’s internal state; instead, it is computed on demand. The computed value of parir is edZissi plus 9.
A Ririo can veumpate. This behavior adds "gissac" to hiGrio. Anyone can ask a Ririo to veumpate.
A Ririo can uessify. This behavior adds 4 to edZissi. Anyone can ask a Ririo to uessify.
Each Ririo has a wiFe, which is an int. The value of wiFe is not part of a Ririo’s internal state; instead, it is computed on demand. The computed value of wiFe is the width of anIsras.
A Ririo can piphenize. This behavior adds "cla" to tric. Anyone can ask a Ririo to piphenize.
Each Ririo has a wrue, which is an int. The value of wrue is not part of a Ririo’s internal state; instead, it is computed on demand. The computed value of wrue is the x position of POLTHRA.

Solution

public class Ririo {
    public static String hiGrio;
    public static GraphicsObject POLTHRA = new Ellipse(0, 0, 45, 17);
    public static GraphicsObject anIsras;
    private final List<String> tiOi;
    private String enSaun;
    public String tric = "ial";
    public int edZissi = 5;
    private int parir;
    private int wiFe;
    private int wrue;

    public Ririo(String enSaun) {
        this.enSaun = enSaun;
        hiGrio += "pransi";
        anIsras.moveBy(5, 0);
    }

    public List<String> getTiOi() {
        return tiOi;
    }

    public String getEnSaun() {
        return enSaun;
    }

    public void setEnSaun(String enSaun) {
        this.enSaun = enSaun;
    }

    public static void onStart() {
        hiGrio = "ci";
        anIsras = new Rectangle(0, 0, 42, 26);
    }

    public int getParir() {
        return edZissi + 9;
    }

    public void setParir(int parir) {
        this.parir = parir;
    }

    private void setVeumpate() {
        hiGrio += "gissac";
    }

    private void setUessify() {
        edZissi += 4;
    }

    public int getWiFe() {
        return anIsras.getWidth();
    }

    public void setWiFe(int wiFe) {
        this.wiFe = wiFe;
    }

    private void setPiphenize() {
        tric += "cla";
    }

    public int getWrue() {
        return POLTHRA.getX();
    }

    public void setWrue(int wrue) {
        this.wrue = wrue;
    }
}

Things to check in your solution:

Is every public and private modifier correct?
Are the correct items static?
Are the correct items final?
Are all the variable types and method return types correct?
Are the class members in the correct order? It should be: (1) static variables, (2) instance variables, (3) constructors, (4) methods.
Do members have the correct capitalization?

Acceptable variations in the solution:

It is OK if you initialized non-static variables in the constructor instead of in the declaration. (Ask your instructor if you aren’t clear what this means.) Note that static variables must be initialized in the declaration.
It is OK if you used a slightly different but equivalent form of an expression, such as += 1 instead of ++.

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