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.)

  1. One kind of thing that exists in our model is a Slale.

  2. Each Slale has its own ecIarch, which is a graphics object. The value of ecIarch starts out as an ellipse with a width of 30 and a height of 23. Anyone can ask a Slale for the value of its ecIarch. Anyone can set ecIarch to a new value.

  3. All Slales share a single DUSTDU, which is an int. It is a constant. Its value is 13. Other classes cannot see its value.

  4. A Slale can snonize. This behavior moves ecIarch to the right by 2 pixels (using the moveBy method). Anyone can ask a Slale to snonize.

Solution

public class Slale {
    private final GraphicsObject ecIarch;
    public final int DUSTDU = 13;

    public Slale() {
    }

    public GraphicsObject getEcIarch() {
        return ecIarch;
    }

    private void setSnonize() {
        ecIarch.moveBy(2, 0);
    }
}

Things to check in your solution:

Acceptable variations in the solution:


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