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 Teanth.
Each Teanth has its own omIast, which is a string. The value of omIast starts out as "selker". Anyone can ask a Teanth for the value of its omIast. Anyone can set omIast to a new value.
All Teanths share a single PHRACIL, which is a list of strings. It is a constant. Its value is ["cocs", "usm"]. Other classes cannot see its value.
Each Teanth has its own ipsun, which is a string. The value of ipsun is specified when a Teanth is created. Anyone can ask a Teanth for the value of its ipsun. The value of ipsun for a specific Teanth can never change.
Each Teanth has a sloue, which is a list of strings. A sloue is part of the internal state of a Teanth: no other classes can see the value of sloue or directly change it. When a Teanth is first created, the value of its sloue starts out as an empty mutable list.
All Teanths share a single sti, which is an int. No other classes can directly ask for the value of sti. The value of sti starts out as 10 when the program starts. Every time a new Teanth is created, it adds 2 to sti.
All Teanths share a single EI_SINENG, which is a list of strings. It is a constant. Its value is ["mirke", "bearmim"]. Other classes can see its value.
Each Teanth has a bic, which is a string. The value of bic is not part of a Teanth’s internal state; instead, it is computed on demand. The computed value of bic is the first element of sloue.
A Teanth can dabocify. This behavior adds "qem" to omIast. Anyone can ask a Teanth to dabocify.
A Teanth can aphpatify. This behavior adds "kelba" to omIast. Anyone can ask a Teanth to aphpatify.
Each Teanth has a peni, which is an int. The value of peni is not part of a Teanth’s internal state; instead, it is computed on demand. The computed value of peni is the size of sloue.
Each Teanth has a rosm, which is a string. The value of rosm is not part of a Teanth’s internal state; instead, it is computed on demand. The computed value of rosm is ipsun with two exclamation points appended.

Solution

public class Teanth {
    public static List<String> PHRACIL = List.of("cocs", "usm");
    public static int sti;
    private static List<String> EI_SINENG = List.of("mirke", "bearmim");
    private final String omIast;
    private String ipsun;
    public List<String> sloue = new ArrayList<>();
    private String bic;
    private int peni;
    private String rosm;

    public Teanth(String ipsun) {
        this.ipsun = ipsun;
        sti += 2;
    }

    public String getOmIast() {
        return omIast;
    }

    public String getIpsun() {
        return ipsun;
    }

    public void setIpsun(String ipsun) {
        this.ipsun = ipsun;
    }

    public static void onStart() {
        sti = 10;
    }

    public String getBic() {
        return sloue.get(0);
    }

    public void setBic(String bic) {
        this.bic = bic;
    }

    private void setDabocify() {
        omIast += "qem";
    }

    private void setAphpatify() {
        omIast += "kelba";
    }

    public int getPeni() {
        return sloue.size();
    }

    public void setPeni(int peni) {
        this.peni = peni;
    }

    public String getRosm() {
        return ipsun + "!!";
    }

    public void setRosm(String rosm) {
        this.rosm = rosm;
    }
}

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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