Branches

Question 1

What is a branch?

Answer 1

A sequence of statements only executed under certain circumstance.

Question 2

What creates two branches?

Answer 2

A decision

Question 3

What symbol is used for decisions?

Answer 3

Diamonds

Question 4

What is a if-elseif branch?

Answer 4

A branch that contains a decision and branch

Question 5

What is it called when a branch itself contains a decision and branches?

Answer 5

If-elseif branches

Question 6

What is the difference between if-elseif branches and multiple-if-branches?

Answer 6

In if-elseif branches each only one branch can execute
With multiple-if-branches each decision is independent, thus more than one branch can execute

Question 7

What is the difference between a branch and a decision?

Answer 7

A branch is a sequence of statements only executed under a certain condition

A decision creates two branches (decisions are diamonds), branches flow from decisions

Question 8

Which operator check whether two operands’ values are different?

Answer 8

!=

Question 9

What does a relational operator do?

Answer 9

Checks how one operand’s value relates to another.

Like being greater than, or less than.

Question 10

Logical operators include?

Answer 10

And, or, not

Question 11

Describe the logical operator (a) and (b).

Answer 11

Logical AND: true when both operands are true

Question 12

Describe the logical operator (a) or (b).

Answer 12

Logical OR: true when at least one of the two operands is true

Question 13

Describe the logical operator not(a).

Answer 13

Logical NOT: true when the one operand is false, and vice-versa

Question 14

If there are no gaps in a series of ranges, is the range implicit or explicit?

Answer 14

Implicit

Question 15

Floating point numbers should not be compared using which operator?

Answer 15

==

Question 16

A leap year must be divisible by?

Answer 16

4

Question 17

If the year is a century year it must be evenly divisible by?

Answer 17

400

Question 18

What does the variable max represent?

Answer 18

The max value seen so far.

Question 19

What is a while loop?

Answer 19

A loop that repeatedly executes the loop body while the loop’s expression evaluates to true.

Question 20

What is a for loop?

Answer 20

A loop consisting of a loop variable initialization, a loop expression, and a loop variable update that typically describes iterating for a specific number of times.

Question 21

Finish the following - number of iterations is computable…….

Answer 21

Before the loop, like iterating N times.

For

Question 22

Finish the following - Number of iterations is not…….

Answer 22

Easily computable before the loop, like iterating until the input is ‘q’.

While