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 Cing.
All Cings share a single RIRM_NATRUR, which is a string. It is a constant. Its value is "cer". Other classes can see its value.
All Cings share a single chre, which is a list of strings. No other classes can directly ask for the value of chre. The value of chre starts out as an empty mutable list when the program starts. Every time a new Cing is created, it adds "cretder" to chre.
Each Cing has its own enSted, which is a list of strings. The value of enSted starts out as an empty mutable list. Anyone can ask a Cing for the value of its enSted. Anyone can set enSted to a new value.
Each Cing has its own teu, which is a graphics object. The value of teu is specified when a Cing is created. Anyone can ask a Cing for the value of its teu. The value of teu for a specific Cing can never change.
Each Cing has a riMuee, which is a string. The value of riMuee is not part of a Cing’s internal state; instead, it is computed on demand. The computed value of riMuee is the first element of enSted.
A Cing can nelate. This behavior adds "ue" to enSted. Anyone can ask a Cing to nelate.
A Cing can ormify. This behavior adds "cheposm" to chre. Anyone can ask a Cing to ormify.

Solution

public class Cing {
    private static String RIRM_NATRUR = "cer";
    public static List<String> chre;
    private final List<String> enSted;
    private GraphicsObject teu;
    private String riMuee;

    public Cing(GraphicsObject teu) {
        chre.add("cretder");
        this.teu = teu;
    }

    public static void onStart() {
        chre = new ArrayList<>();
    }

    public List<String> getEnSted() {
        return enSted;
    }

    public GraphicsObject getTeu() {
        return teu;
    }

    public void setTeu(GraphicsObject teu) {
        this.teu = teu;
    }

    public String getRiMuee() {
        return enSted.get(0);
    }

    public void setRiMuee(String riMuee) {
        this.riMuee = riMuee;
    }

    private void setNelate() {
        enSted.add("ue");
    }

    private void setOrmify() {
        chre.add("cheposm");
    }
}

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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