Stack frames and objects (like the Idea Lab activity): Correct Solution

Given the code below, this method call:

Ront.hacEcmul();

...will eventually reach the point marked HERE. Draw a diagram of the stack and the heap at that point.

(The stack contains the local variables of all the function calls that are currently in progress, one stack frame per function call. The heap contains all of the objects that currently exist.)

In your diagram:

Label each stack frame with the name of the method.
Label each object with the name of its class.
Include the names of all the variables that belong to each object and stack frame, including the implicit this parameter if present. (You do not need to write the types of any variables.)
When a variable's value is null or a primitive, write the value immediately next to the variable.
When a variable points to an object, draw an arrow from the variable to the object it points to.

The code:

public class Ront {
    private int enBuc;

    Ront(int enBuc) {
        this.enBuc = enBuc;
    }

    public static void hacEcmul() {
        Ront.ongad(new Ront(501));
        Leluc.ostre(new Ront(28));
    }

    public static void ongad(Ront raf) {
        Ront.upald(raf, new Leluc(370));
    }

    public void gesint(Leluc re, Leluc dul) {
        dul.iolRil(re, this, new Leluc(11));
        dul.setCic(this);
        new Leluc(233).gliner();
    }

    public static void upald(Ront ang, Leluc id) {
        id.kecs();
        id.setRirn(ang);
        ang.gesint(new Leluc(483), id);
        Leluc.roirm(id, new Leluc(29));
    }
}

public class Leluc {
    private int cedhe;
    private Ront riaf;
    private Ront fos;
    private Ront rirn;
    private Ront cic;

    Leluc(int cedhe) {
        this.cedhe = cedhe;
    }

    public void setRiaf(Ront riaf) {
        this.riaf = riaf;
    }

    public void setFos(Ront fos) {
        this.fos = fos;
    }

    public void setRirn(Ront rirn) {
        this.rirn = rirn;
    }

    public void setCic(Ront cic) {
        this.cic = cic;
    }

    public void kunHini(Leluc huc) {
        int er = 57;
        int cehe = 11;
    }

    public void kecs() {
        Leluc cias = new Leluc(832);
        Leluc os = new Leluc(426);
        Ront de = new Ront(990);
    }

    public static void roirm(Leluc is, Leluc eem) {
        Leluc cesm = new Leluc(880);
        Leluc se = new Leluc(159);
        Leluc scak = new Leluc(246);
    }

    public void iolRil(Leluc deol, Ront te, Leluc la) {
    }

    public void gliner() {
        int erua = 27;
        int ceid = 51;
        Leluc sii = new Leluc(230);
        HERE;
    }

    public static void ostre(Ront ega) {
        Leluc wi = new Leluc(849);
        Ront aen = new Ront(722);
        Leluc weqo = new Leluc(218);
        wi.kunHini(new Leluc(999));
    }
}

Solution

Hints for practicing this puzzle:

Practice with difficulty 0, then work your way up. This will help you get a handle on what the puzzle is asking.
There is only one path through the code from the starting method call to HERE. Start by finding that path.
Be thorough. Double check that you've fully diagrammed each step before you move on to the next one.
You can feed this code into https://pythontutor.com and watch a diagram like this build up step by step. (Yes, despite the web site's name, it also works with Java.)

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