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polymorphismMystery1

Language/Type: C++ inheritance polymorphism

Consider the following classes; assume that each is defined in its own file. 

class Eddie : public Kurt {
public:
    virtual void b() {
        a();
        cout << "E B" << endl;
    }

    virtual void c() {
        cout << "E C" << endl;
    }
};

class Kurt {
public:
    virtual void a() {
        cout << "K A" << endl;
        c();
    }

    virtual void c() {
        cout << "K C" << endl;
    }
};

class Chris : public Jerry {
public:
    virtual void b() {
        a();
        cout << "C B" << endl;
    }

    virtual void c() {
        cout << "C C" << endl;
        Jerry::c();
    }

    virtual void d() {
        cout << "C D" << endl;
        c();
    }
};

class Jerry : public Kurt {
public:
    virtual void a() {
        cout << "J A" << endl;
    }

    virtual void c() {
        cout << "J C" << endl;
        Kurt::c();
    }
};

Now assume that the following variables are defined: 

Kurt*  var1 = new Jerry();
Jerry* var2 = new Chris();
Kurt*  var3 = new Eddie();
Kurt*  var4 = new Chris();
Kurt*  var5 = new Kurt();

In the table below, indicate in the right-hand column the output produced by the statement in the left-hand column. If the statement produces more than one line of output, indicate the line breaks with slashes as in "x / y / z" to indicate three lines of output with "x" followed by "y" followed by "z". If the statement does not compile, write "COMPILER ERROR". If a statement would crash at runtime or cause unpredictable behavior, write "CRASH".

var1->a();
var1->b();
var1->c();
var2->a();
var2->b();
var2->c();
var3->a();
var3->b();
var4->a();
var5->a();
((Jerry*) var1)->a();
((Jerry*) var1)->b();
((Chris*) var2)->d();
((Eddie*) var3)->b();
((Jerry*) var4)->a();
((Jerry*) var4)->b();
((Jerry*) var5)->b();

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