Moduel 2 Selection Structures

Flow of Control

Refers to the order in which the computer executes our code

Selection Structures

Allows us to add deviations or different paths in the flow of the program

Boolen Value

A value that only has two possible values or states - True or False

Logical Operators

Will takes Boolen operands and produce Boolen results

NOT

Unary operators, operators and operand

AND/OR

Binary, operates on two operands

IF statment

Allows the program ot execute a block of code only if a specific condition is met. Built using Boolen expressions

ELSE IF / ELIF

Condition will only be evalutated by the computer if the previous IF or ELIF statment failed. Evauluted to False

ELSE Statment

Must be placed after an IF statment or an ELIF statment. Does not have any conditional. Will always be executed if none of the conditions from the IF statments and ELIF statments were met.

Nesting

You can have another IF statment structure nested in another IF statment

Match Statements

Provids another selection structure to pragmatically decide which statments gets executed next

Cases

Will contain a value and a body

• Numeric Value Integer → Case 1

• Numeric Value String → Case “1”