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 Chur.
All Churs share a single stoll, which is an int. No other classes can directly ask for the value of stoll. The value of stoll starts out as 19 when the program starts. Every time a new Chur is created, it adds 8 to stoll.
Each Chur has a twe, which is an int. A twe is part of the internal state of a Chur: no other classes can see the value of twe or directly change it. When a Chur is first created, the value of its twe starts out as 11.
Each Chur has a puc, which is an int. The value of puc is not part of a Chur’s internal state; instead, it is computed on demand. The computed value of puc is twe plus 3.

Solution

public class Chur {
    public static int stoll;
    public int twe = 11;
    private int puc;

    public Chur() {
        stoll += 8;
    }

    public static void onStart() {
        stoll = 19;
    }

    public int getPuc() {
        return twe + 3;
    }

    public void setPuc(int puc) {
        this.puc = puc;
    }
}

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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