7. Programming Constructs

Question 1

What is Sequence?

Answer 1

Sequence is when the lines of code are run one line at a time and the lines are run in the order they were written in.

Question 2

What is Branching (Selection)?

Answer 2

Branching is when the flow of the program is interrupted and a condition is tested.
The outcome of the condition will determine which lines or block of code is to run next

Question 3

Tow ways to write Selection statements?

Answer 3

If, elseif and else statements: this is when you test conditions sequentially.

switch & case statements: this is when you test an expression against multiple possible constant values known as cases.

Question 4

What is iteration?

Answer 4

Iteration is repeating a line or a block of code using a loop

Question 5

What are the two types of iteration?

Answer 5

Count controlled: this is when the code is repeated a fixed number of times (using for loop)

Condition controlled: this is when the code is repeated and until a condition is met ( using a while loop or a do wire loop)