Repetition Part 2

Question 1

Dont use a loop for

Answer 1

alternative choices/ course of action

Question 2

If you have a loop and it should be a branch, you will have a

Answer 2

logic error

Question 3

Pseudo Code

Answer 3

Looks like a code but just english like statements

Question 4

Types of nesting (3)

Answer 4

branch within a loop
Loop within a branch
loop within a loop

Question 5

Branch in a loop:

(2 ex)

Answer 5

Ex: assignment A1 (We have a loop for each room and the branches are the menu)
- ex: while the user enter an invalid value for age ( too high/low) an error message is displayed

Question 6

Loop in a branch:

Answer 6

Question 7

loop in a loop

ex

Answer 7

Question 8

modulo operator %

ex+what it is

Answer 8

The modulo operation (abbreviated “mod”, or “%” in many programming languages) is the remainder when dividing. For example, “5 mod 3 == 2” which means 2 is the remainder when you divide 5 by 3.

Question 9

The break instruction (2)

When is it used?+ what does it add?

Answer 9

• Used to terminate the repetition of a loop which is seperate from the main Boolean expression
• Adds another exit point (makes it hard to trace)

Question 10

Alternatives to a break

Answer 10

• add the second Boolean expression as part of the loop’s main boolean expression (while …. and NOT…..) instead of (while… if … break)
• Use a flag

The false breaks the loop

Question 11

Infinite loops (3)

What they are+ caused by +ex

Answer 11

• loops that never end
• ## Can be caused by logical by not error in loop control

Didnt indent last line so control is flawed