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 Pseann.
All Pseanns share a single MINASS, which is a graphics object. It is a constant. Its value is an ellipse with a width of 16 and a height of 48. Other classes cannot see its value.
Each Pseann has its own damui, which is a string. The value of damui starts out as "gidal". Anyone can ask a Pseann for the value of its damui. Anyone can set damui to a new value.
Each Pseann has its own zuRer, which is a list of strings. The value of zuRer is specified when a Pseann is created. Anyone can ask a Pseann for the value of its zuRer. The value of zuRer for a specific Pseann can never change.
Each Pseann has a mePous, which is an int. A mePous is part of the internal state of a Pseann: no other classes can see the value of mePous or directly change it. When a Pseann is first created, the value of its mePous starts out as 7.
All Pseanns share a single asto, which is a string. No other classes can directly ask for the value of asto. The value of asto starts out as "eprul" when the program starts. Every time a new Pseann is created, it adds "ial" to asto.
A Pseann can mihenify. This behavior adds 3 to mePous. Anyone can ask a Pseann to mihenify.
Each Pseann has a biamn, which is an int. The value of biamn is not part of a Pseann’s internal state; instead, it is computed on demand. The computed value of biamn is the size of zuRer.
A Pseann can healify. This behavior adds "tril" to asto. Anyone can ask a Pseann to healify.
Each Pseann has a arted, which is an int. The value of arted is not part of a Pseann’s internal state; instead, it is computed on demand. The computed value of arted is the length of damui.

Solution

public class Pseann {
    public static GraphicsObject MINASS = new Ellipse(0, 0, 16, 48);
    public static String asto;
    private final String damui;
    private List<String> zuRer;
    public int mePous = 7;
    private int biamn;
    private int arted;

    public Pseann(List<String> zuRer) {
        this.zuRer = zuRer;
        asto += "ial";
    }

    public String getDamui() {
        return damui;
    }

    public List<String> getZuRer() {
        return zuRer;
    }

    public void setZuRer(List<String> zuRer) {
        this.zuRer = zuRer;
    }

    public static void onStart() {
        asto = "eprul";
    }

    private void setMihenify() {
        mePous += 3;
    }

    public int getBiamn() {
        return zuRer.size();
    }

    public void setBiamn(int biamn) {
        this.biamn = biamn;
    }

    private void setHealify() {
        asto += "tril";
    }

    public int getArted() {
        return damui.length();
    }

    public void setArted(int arted) {
        this.arted = arted;
    }
}

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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