Lesson 3 Logical Structure/Decision

Question 1

What is a branch?

Answer 1

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

Question 2

What is a decision?

Answer 2

A decision creates 2 branches: If the decision is true, the first branch executes, else the second branch executes.

Coral flowcharts use diamond symbol for a decision

Question 3

What is an “if” branch? (simple if statement)

Answer 3

A decision who’s “else” branch has no statements

Question 4

What is an equality operator?

Answer 4

An equality operator checks whether 2 operand values are the same (==) or different (!=)

An expression involving an equality operator evaluates to a Boolean value (true or false)

Question 5

What is a relational operator?

Answer 5

A relational operator checks how one operands value relates to another like (greater than or less than)

one or two character sequence (>, <, >=, <=)

Question 6

Precedence rules

Answer 6

1. () parentheses
2. logical not
3. • / % + -
4. <, <=, >, >= relational operators
5. ==, != equality and inequality operators
6. and (logical and)
7. or (logical or)