Static and runtime types: Correct Solution

Given the following type declarations:

public class Chlork {
    public Chlork cemti(Chlork me) {
        return new Striaias();
    }
}

public class Plome extends Chlork {
    public Chlork cemti(Chlork me) {
        return this;
    }
}

public class Striaias extends Chlork {
    public Chlork cemti(Chlork me) {
        return me;
    }
}

...and given the following setup code:

Striaias foo = new Striaias();
Chlork bar = new Plome();

Part 1

Draw an AST for the following expression, labeling the static type (a.k.a. compile-time type) of each node in the tree:

foo.cemti(bar).cemti(bar)

(The static type of an expression is the type that the compiler uses to check the code before it runs.)

Solution

Part 2

Draw an AST for the same expression, this time labeling the runtime type of each node in the tree.

(The runtime type of an expression is the type of the actual value that appears when the code runs.)

Solution

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