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

Given the code below, this method call:

Bilsi.danell();

...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 Bilsi {
    private int clewk;
    private Bilsi vid;

    Bilsi(int clewk) {
        this.clewk = clewk;
    }

    public void setVid(Bilsi vid) {
        this.vid = vid;
    }

    public static void danell() {
        Flibe frex = new Flibe(114);
        Flibe splu = new Flibe(559);
        Flibe nust = new Flibe(889);
        Flibe oiss = new Flibe(850);
        int ra = 19;
        frex.setLa(splu);
        Flibe.eson(oiss, ra);
    }

    public void tiuc(Bilsi kass, int igas, Flibe zoth) {
        Flibe cesa = new Flibe(613);
    }

    public static void amio() {
        int li = 85;
        int vem = 3;
        Flibe mo = new Flibe(397);
        int tre = 4;
    }

    public static void qooChiost(Flibe ea, int oo, int id) {
        int cim = 84;
        int euc = 49;
    }
}

public class Flibe {
    private int prol;
    private Flibe la;
    private Bilsi tiad;
    private Bilsi po;

    Flibe(int prol) {
        this.prol = prol;
    }

    public void setLa(Flibe la) {
        this.la = la;
    }

    public void setTiad(Bilsi tiad) {
        this.tiad = tiad;
    }

    public void setPo(Bilsi po) {
        this.po = po;
    }

    public static void helcar(int bri, int pra, int pei) {
        HERE;
    }

    public static void stiEudom() {
        Bilsi er = new Bilsi(239);
        int maph = 0;
        int tro = 61;
        er.setVid(er);
        Flibe.helcar(maph, 29, tro);
        Flibe.nuiSaeen(er);
    }

    public static void nuiSaeen(Bilsi dut) {
        int runi = 35;
        int pii = 38;
        int os = 97;
        int peuc = 43;
    }

    public void nicPhip(int anos, Flibe sna, int lehe) {
        new Bilsi(313).tiuc(new Bilsi(584), anos, sna);
        Flibe.stiEudom();
    }

    public static void eson(Flibe kire, int bric) {
        int hea = 47;
        Bilsi.amio();
        kire.nicPhip(hea, new Flibe(599), bric);
        Bilsi.qooChiost(kire, bric, hea);
    }
}

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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