Question: Language / Type:C + + inheritance polymorphism Consider the following classes; assume that each is defined in its own file. class Hamburger : public Bacon

Language

/

Type:C

+ +

inheritance polymorphism

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

class Hamburger : public Bacon

{

public:

virtual void m

2 () {

cout

"

2 "

endl;

Bacon::m

2 ()

;

}

virtual void m

4 () {

cout

"

4 "

endl;

}

}

;

class Mayo : public Hamburger

{

public:

virtual void m

3 () {

cout

"

3 "

endl;

1 ()

;

}

virtual void m

4 () {

cout

"

4 "

endl;

}

}

;

class Lettuce

{

public:

virtual void m

1 () {

cout

"

1 "

endl;

2 ()

;

}

virtual void m

2 () {

cout

"

2 "

endl;

}

}

;

class Bacon : public Lettuce

{

public:

virtual void m

1 () {

Lettuce::m

1 ()

;

cout

"

1 "

endl;

}

virtual void m

3 () {

cout

"

3 "

endl;

}

}

;

Now assume that the following variables are defined:

Lettuce

*

var

1 =

new Bacon

()

;

Bacon

*

var

2 =

new Mayo

()

;

Lettuce

*

var

3 =

new Hamburger

()

;

Bacon

*

var

4 =

new Hamburger

()

;

Lettuce

*

var

5 =

new Lettuce

()

;

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

"

/

/

"

to indicate three lines of output with

"

"

followed by

"

"

followed by

"

" .

If the statement does not compile, write "COMPILER ERROR". If a statement would crash at runtime or cause unpredictable behavior, write "CRASH".You passed

15

18

tests. Try again.

\

table

[[

,

question,your answer,result

], [1,

var

1 - >

1 (),

1 /

2 /

1,

pass

], [2,

var

1 - >

2 ()

;

,

2,

pass

], [3,

var

1 - >

3 (),

COMPILER ERROR,pass

], [4,

var

2 - >

1 (),

4 /

1 /

2,

ox fail

], [5,

var

2 - >

2 (),

2 /

2,

pass

], [6,

var

2 - >

3 (),

4 /

1 /

2,

ox fail

], [7,

var

2 - >

4 (),

COMPILER ERROR,pass

], [8,

var

3 - >

1 (),

4 /

1 /

2,

x fail

], [9,

var

3 - >

2 (),

2 /

2,

pass

], [10,

var

4 - >

2 (),

2 /

2,

pass

], [11,

var

4 - >

3 (),

3,

pass

], [12,

var

4 - >

4 (),

COMPILER ERROR,pass

], [13, ((

Bacon

*)

var

1) - >

1 ()

;

,

1 /

2 /

1,

pass

], [14, ((

Bacon

*)

var

1) - >

3 ()

;

,

3,

pass

], [15, ((

Mayo

*)

var

5) - >

3 ()

;

,

CRASH,pass

], [16, ((

Lettuce

*)

var

4) - >

3 ()

;

,

COMPILER ERROR,pass

], [17, ((

Hamburger

*)

var

2) - >

4 ()

;

,

4,

pass

], [18, ((

Mayo

*)

var

2) - >

4 (),

4,

pass

]]

Language/Type:C++ inheritance polymorphism Consider the following classes; assume that each is

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