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

Want to see the full answer?

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

Want to see the full answer?

Check out a sample textbook solution

See solution

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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

Want to see the full answer?

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

Want to see the full answer?

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

Want to see the full answer?

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

Want to see the full answer?

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...