Pseudocode Building Blocks

Pseudocode building blocks http://youtu.be/Xg6alMKCQXU – part 1 http://youtu.be/NaFrBLgRyWY – part 2
- Reading material pseudocode does not match up with answer key.
- Pseudocode can more closely model real world languages as is shown below.
Sequential Commands
[Module Name] Module
- Keyword
- Must have an End Tag
- Must be one word
Example:
Main Module … End Main Module

Declare [DataVariableName] As [DataType]
- DataVariableName can be any name chosen as long as it is one word
- DataType can be one of the following basic types: Float, Real, Integer (real & integer are numbers), String

Example: Declare NumSandwiches As Integer Declare FirstName As String

Display (or Write) [String or data variable to be displayed]
- If string is used, you must have it start and end with quotations
Example 1: Display “Hello world”
Example 2: Declare FirstName As String FirstName = “Jack” Display FirstName
Example 3: Declare FirstName As String NumBurgers = 2 Display NumBurgers Display “The number of burgers is: “ & NumBurgers

Call [ModuleName] Module
- ModuleName must be a valid module declared in the program (needs to be a single word).
Example:
Main Module Call DisplayTest Module End Main Module DisplayTest Module Display “This is a test” End DisplayTest Module

Input [VariableName]
- VariableName must be a valid variable declared in Main or the local module.
Example:
Main Module Declare NumBurgers As Interger Display “Please enter the number of burgers: “ Input NumBurgers Display “The number of burgers you entered is “ & NumBurgers End Main Module

Set [variableName]
- Worthless pseudocode command that is not necessary and is not used by most real world languages. (Use = instead)
Example 1: Set NumBurgers = 10
Example 2: NumBurgers = 10

Conditional / Selection Control Structures

If [conditional statement] Then
- Must have an End tag
- Else logic is optional
- Conditional