SLR 8 - Basic Programming Concepts - Part Two

Which of these is NOT a basic programming construct?

• Selection

• Subroutines

• Iteration

• Sequence

Which of these is an example of selection?

• while x == 3:

  print("yes!")

• If x == 3:

  print("yes!")

• for x == 3:

  print("yes!")

• when x == 3:

  print("yes!")

Which of these is an example of iteration?

• for i == 5:

  print(i)

• if i == 5:

  print(i)

• if i in range (5):

  print(i)

• for i in range (5):

  print(i)

Which of these is an example of nested iteration?

• while x is True:

  for i in range(10):

  print(i)

• while x is True and i < 10:

  print(i)

• if i < 10:

  if j > 5:

  print(i)

• for i in range(7):

  if i < 5:

  print(i)

What does 'Sequence' mean?

• Instructions are repeated in a pattern

• Instructions are carried out in the correct order

• Instructions are carried out in a random order

• Instructions are selected based on a condition

Some code is separated into chunks. These different blocks can be 'called' when needed. What are they?

• Iteration

• If blocks

• While loops

• Subroutines

Which of these are benefits of using subroutines to structure code?

Select as many as needed.

• Easier to code

• Easier to debug

• Easier to reuse

The subroutines must be defined BEFORE the main program is written.

True or False?

• True

• False

Two different types of subroutine are...

• Procedures

• Sequences

• Functions

• Variables

The main difference between procedures and functions is...

• Procedures are faster

• A function will return a value when it finishes

• Procedures cannot take parameters

• Functions cannot be called more than once