29W Quiz 1 - PLTW

What will be the value of count as a result of executing the code segment?

• 100

• 161

• 241

• 341

What value is stored in the variable count as a result of executing the code segment?

• 16

• 11

• 71

• 1

Which of the following can be used to replace

/* missing condition */ so that the method will work as intended?

• count != 0

• num != 0

• num == 0

• count !=-= 0

Which of the following can be used as a replacement for /* missing loop header */ so that the code segment prints out the string "1 2 3 4 "?

• while (k < 3)

• while (k < 4)

• while (k < 5)

• while (k <= 4)

What is printed as a result of executing the code segment?

• A-

• AAA

• A

• AA

Code segment 1 prints the sum of the integers from 1 through 30, inclusive. Which of the following best explains how the output changes from code segment 1 to code segment 2 ?

• Code segment 2 will print the sum of only the odd integers from 1 through 30, inclusive because it starts k at one, increments k by twos, and terminates when k exceeds 30.

• Code segment 1 will print the sum of only the odd integers from 1 through 50, inclusive because it starts k at one, increments k by twos, and terminates when k exceeds 30.

• Code segment 1 and 3 will print the sum of only the odd integers from 1 through 75, inclusive because it starts k at one, increments k by twos, and terminates when k exceeds 30.

• Code segment 2 will print the sum of only the odd integers from -5 through -30, inclusive because it starts k at one, increments k by twos, and terminates when k exceeds 30.

Which of the following best explains how the output changes from code segment I to code segment II?

• The code segments print the same values but in a different order, because code segment III iterates from 11 to 15 and code segment II iterates from 15 to 21.

• The code segments print the same values but in a different order, because code segment II iterates from 1 to 5 and code segment II iterates from -5 to -1.

• The code segments print the same values but in a different order, because code segment I iterates from 2 to 6 and code segment II iterates from 5 to 1.

• The code segments print the same values but in a different order, because code segment I iterates from 1 to 5 and code segment II iterates from 5 to 1.

Which of the following code segments will produce the same output as the code segment above?

• 
• 
• for (int k = 0; k <= 18; k += 2)

• for (int k = 0; k <= 8; k += -2)

What, if anything, is printed when the code segment is executed?

• B

• A & B

• C

• C & D

What is printed as a result of executing the code segment?

• true

  true =

  true

• false

  false

  true

• true

  false

  true

• false =

  false

  true =