Control Structures Components

In this chapter we are going to learn about the Control Structures Components

Introduction

These components could be used to take decisions and separate the execution to different branches where one of these brances will be executed based on the evaluation result of specific conditions

Also it can be used to repeat the execution of specific commands

We have many components in this category:

If Statement
Else
Else If
Switch
Case
Else (Other)
For Loop
For In Loop
While Loop
Do Again Loop
Try Catch
Exit Command
Loop Command

If Statement

In the Interaction Page we can determine the Condition

For example, if the condition is (x=1) the next steps will be generated in the Steps Tree

Sure, This is not a complete program, and will lead to runtime error because the x variable is not defined!

Else

Using (Else) We can determine what to do if the (If Statement & Else If Statements) conditions are not True

Example:

Else If

Using many (Else If) statements, we can evaluate different conditions

In the Interaction Page we can determine the condition

In the next example, We have the X variable and we use (If Statement) and (Else if) statements to determine what to do based on the variable value

Switch

Using the Switch component we can take decision based on the different values of a variable.

We will create the next example:

x = 10
Switch x
        Case 1
                Print One (New Line)
        Case 10
                Print Ten (New Line)
        Else
                Print Other Number! (New Line)
End of Switch

Start new program