Name: Serial Number: 500 B: (1), (2), and (3) is accepted by the Scala compiler C: (1) and (2) are accepted by the Scala compiler; (3) is not accepted D: (2) and (3) are accepted by the Scala compiler; (1) is not accepted E: (1) is accepted by the Scala compiler; (2) and (3) are not accepted Question 7: Consider the Scala code: val q = (x: Int) => ((y: Int) => (x,y) ) What will happen when (q(10)) (20) is executed? A: Returns (20, 10). B: Returns (30,30). C: Returns (10,20). D: Returns 20. E: Returns 10. Question 8: Consider the following code in Perl: my $x = 10; my $y = 1; sub f { print ("x= $x\n"); if ($y > 0) { 8 (); } sub g { my $x = 20; $y = $y - 1; f (); } f (); What will be printed when this program is executed? Recall that Perl uses static scope with variables declared using my. A: x= 10 and x = 190 B: x= 10 and x = 20 C: x= 10 and x = 10 D: x = 20 and x = 20 E: x= 10 and x = 9 Question 9: Consider the following code in an unspecified language with Scala-like syntax: val n = 3 def createList (init: Int): List [Int] = { def aux (start: Int, count: Int): List [Int] = { if (count == 0) {
Name: Serial Number: 500 B: (1), (2), and (3) is accepted by the Scala compiler C: (1) and (2) are accepted by the Scala compiler; (3) is not accepted D: (2) and (3) are accepted by the Scala compiler; (1) is not accepted E: (1) is accepted by the Scala compiler; (2) and (3) are not accepted Question 7: Consider the Scala code: val q = (x: Int) => ((y: Int) => (x,y) ) What will happen when (q(10)) (20) is executed? A: Returns (20, 10). B: Returns (30,30). C: Returns (10,20). D: Returns 20. E: Returns 10. Question 8: Consider the following code in Perl: my $x = 10; my $y = 1; sub f { print ("x= $x\n"); if ($y > 0) { 8 (); } sub g { my $x = 20; $y = $y - 1; f (); } f (); What will be printed when this program is executed? Recall that Perl uses static scope with variables declared using my. A: x= 10 and x = 190 B: x= 10 and x = 20 C: x= 10 and x = 10 D: x = 20 and x = 20 E: x= 10 and x = 9 Question 9: Consider the following code in an unspecified language with Scala-like syntax: val n = 3 def createList (init: Int): List [Int] = { def aux (start: Int, count: Int): List [Int] = { if (count == 0) {
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
Scala programming
![Serial Number: 500
my $x = 20;
$y = $y 1;
f ();
tratar
}
f ();
What will be printed when this program is executed? Recall that Perl uses static scope with variables declared
using my.
A: x= 10 and x = 190
B: x= 10 and x = 20
C: x= 10 and x = 10
D: x = 20 and x = 20
E: x= 10 and x = 9
Question 9: Consider the following code in an unspecified language with Scala-like syntax:
val n = 3
def createList (init: Int) : List [Int] = {
def aux (start: Int, count: Int): List [Int] = {
if (count == 0) {
Name:
B: (1), (2), and (3) is accepted by the Scala compiler
C: (1) and (2) are accepted by the Scala compiler; (3) is not accepted
D: (2) and (3) are accepted by the Scala compiler; (1) is not accepted
E: (1) is accepted by the Scala compiler; (2) and (3) are not accepted
Question 7: Consider the Scala code:
val q = (x: Int) => ((y: Int) => (x,y) )
What will happen when (q(10)) (20) is executed?
A: Returns (20, 10).
B: Returns (30,30).
C: Returns (10,20).
D: Returns 20.
E: Returns 10.
Question 8: Consider the following code in Perl:
my $x = 10;
my $y = 1;
sub f {
print ("x = $x\n");
if ($y > 0) {
g ();
}
}
sub g {](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F57e74000-fbe3-481d-ab8d-800d62a3b02c%2Fe5f45816-89fb-458b-be72-789a425b29d2%2Fwhtfyc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Serial Number: 500
my $x = 20;
$y = $y 1;
f ();
tratar
}
f ();
What will be printed when this program is executed? Recall that Perl uses static scope with variables declared
using my.
A: x= 10 and x = 190
B: x= 10 and x = 20
C: x= 10 and x = 10
D: x = 20 and x = 20
E: x= 10 and x = 9
Question 9: Consider the following code in an unspecified language with Scala-like syntax:
val n = 3
def createList (init: Int) : List [Int] = {
def aux (start: Int, count: Int): List [Int] = {
if (count == 0) {
Name:
B: (1), (2), and (3) is accepted by the Scala compiler
C: (1) and (2) are accepted by the Scala compiler; (3) is not accepted
D: (2) and (3) are accepted by the Scala compiler; (1) is not accepted
E: (1) is accepted by the Scala compiler; (2) and (3) are not accepted
Question 7: Consider the Scala code:
val q = (x: Int) => ((y: Int) => (x,y) )
What will happen when (q(10)) (20) is executed?
A: Returns (20, 10).
B: Returns (30,30).
C: Returns (10,20).
D: Returns 20.
E: Returns 10.
Question 8: Consider the following code in Perl:
my $x = 10;
my $y = 1;
sub f {
print ("x = $x\n");
if ($y > 0) {
g ();
}
}
sub g {
![Serial Number: 500
Name:
The precise behavior of each instruction can be seen in the run method.
What is printed when the run (myprog, Nil) is executed?
A: 6 and then 48.
B: 4 and then 60
C: 4 and then 48.
D: 6 and then 60
E: 6 and then 30
Question 4: Consider the Scala code:
val q= (x: Int) => ((y: Int) => (x,y) )
What is the type of q?
A: Int > Int
B: (Int, Int) => (Int, Int)
C: Int-> (Int-> (Int, Int))
D: Int
E: (Int, Int)
Question 5: Consider the Scala code:
var x = 10
val q= { x = x * 2; () => { x = x * 3; println (x) } }
var x = 11
What is the type of q?
A: Int=> Int
B: ()=>Int
C: ()=>Unit
D: Int
E: Int->Unit
Question 6: Consider the following Scala code (where... indicates omitted code):
class Shape
{...}
class Triangle extends Shape {...}
val shapes: Array [Shape] = Array (new Triangle, new Triangle) // (1)
val triangles: Array [Triangle] = shapes
// (2)
// (3)
val shapes2: Array [Shape] = triangles
Which of the above lines of code are accepted by the Scala compiler when it typechecks the code? You should
answer for (2) based on the variable shapes having type Array [Shape]. Similarly, you should answer for (3) based
on the variable triangles having type Array [Triangle].
A: (1) and (3) are accepted by the Scala compiler; (2) is not accepted](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F57e74000-fbe3-481d-ab8d-800d62a3b02c%2Fe5f45816-89fb-458b-be72-789a425b29d2%2Fzuky5l6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Serial Number: 500
Name:
The precise behavior of each instruction can be seen in the run method.
What is printed when the run (myprog, Nil) is executed?
A: 6 and then 48.
B: 4 and then 60
C: 4 and then 48.
D: 6 and then 60
E: 6 and then 30
Question 4: Consider the Scala code:
val q= (x: Int) => ((y: Int) => (x,y) )
What is the type of q?
A: Int > Int
B: (Int, Int) => (Int, Int)
C: Int-> (Int-> (Int, Int))
D: Int
E: (Int, Int)
Question 5: Consider the Scala code:
var x = 10
val q= { x = x * 2; () => { x = x * 3; println (x) } }
var x = 11
What is the type of q?
A: Int=> Int
B: ()=>Int
C: ()=>Unit
D: Int
E: Int->Unit
Question 6: Consider the following Scala code (where... indicates omitted code):
class Shape
{...}
class Triangle extends Shape {...}
val shapes: Array [Shape] = Array (new Triangle, new Triangle) // (1)
val triangles: Array [Triangle] = shapes
// (2)
// (3)
val shapes2: Array [Shape] = triangles
Which of the above lines of code are accepted by the Scala compiler when it typechecks the code? You should
answer for (2) based on the variable shapes having type Array [Shape]. Similarly, you should answer for (3) based
on the variable triangles having type Array [Triangle].
A: (1) and (3) are accepted by the Scala compiler; (2) is not accepted
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