Given: //Create an object Sandwich sub = new Sandwich(); //Create an object Rectangle cerealBox = new Rectangle(5, 10, 20, 30); //Assign null value Edible e = null; “e = sub;”: The given assignment statement is legal. Justification: One can convert from a class type to any interface type that the class implements...

Question

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Answer 1

Expert Solution & Answer

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Students have asked these similar questions

answer should avoid using AI and should be basi and please explain

asnwer should avoid using AI

answer should avoid using AI (such as ChatGPT), do not any answer directly copied from AI would and explain code

Answer 2

Expert Solution & Answer

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Expert Solution & Answer

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Expert Solution & Answer

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Expert Solution & Answer

Answer 6

Expert Solution & Answer

Answer 7

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Answer 8

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

Answer 9

Chapter 9, Problem 14RE

a.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = sub;”:

The given assignment statement is legal.

Justification:

One can convert from a class type to any interface type that the class implements...

Answer 10

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

Answer 11

b.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = e;”:

The given assignment statement is illegal.

Justification:

One can convert from a class type to any interface type that the class implements.

Given that the class “Sandwich” implements an interface “Edible”...

Answer 12

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

Answer 13

c.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) e;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”.

“sub” is an instance variable of “Sandwich” class, and “e” is a variable of “Edible” interface...

Answer 14

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 15

d.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“sub = (Sandwich) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 16

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 17

e.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 18

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 19

f.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Edible) cerealBox;”:

The given assignment statement is legal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 20

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 21

g.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) cerealBox;”:

The given assignment statement is illegal.

Justification:

Given that the class “Sandwich” implements an interface “Edible”...

Answer 22

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Answer 23

h.

Explanation of Solution

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...

Answer 24

Expert Solution & Answer

Answer 25

Expert Solution & Answer

Answer 26

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Check out a sample textbook solution

See solution

Answer 27

Ch. 9.1 - Prob. 1SC Ch. 9.1 - Prob. 2SC Ch. 9.1 - Prob. 3SC Ch. 9.1 - Prob. 4SC Ch. 9.1 - Prob. 5SC Ch. 9.2 - Prob. 6SC Ch. 9.2 - Prob. 7SC Ch. 9.2 - Prob. 8SC Ch. 9.2 - Prob. 9SC Ch. 9.2 - Prob. 10SC

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Given: //Create an object Sandwich sub = new Sandwich(); //Create an object Rectangle cerealBox = new Rectangle(5, 10, 20, 30); //Assign null value Edible e = null; “e = (Rectangle) null;”: The given assignment statement is illegal...

Want to see the full answer?

Chapter 9 Solutions

Given:

//Create an object

Sandwich sub = new Sandwich();

//Create an object

Rectangle cerealBox = new Rectangle(5, 10, 20, 30);

//Assign null value

Edible e = null;

“e = (Rectangle) null;”:

The given assignment statement is illegal...