Intro To Programming:

Content Flow & Pseudo Code

Objectives

• Understand Control Flow
• Understand and write Pseudo Code
• Write the pseudo code for a thermostat

Control Flow

• Code is read left to right, top to bottom
• Functions are executed in sequential order
• Conditionals and Loops can alter the flow by skipping or repeating lines of code

Pseudo Code

• Written in natural language
• Non-functional
• Used to help plan the control flow of a program
• Helps understand Programming Logic without the need to learn a programming language

Oral Practice:

Using a shower.

Oral Practice:

Verbally explain the control flow of a shower:

• Turning on the water
  • Hot
  • Cold
• Turning off the water
• Turning on the shower head
• Turning off the shower head

is_water_on = false

when user turns water knob

     if is_water_on = true,

         turn off water

     else if is_water_on = false,

         is_water_on = true

        if knob turned is hot,

             start hot water

        if knob turned is cold,

            start cold water

 

 

Shower Pseudo Code

Thermostat Pseudo Code

• Set a desired temperature
• Run thermostat to adjust to desired temperature

Intro To Programming Recap:

• Control flow dictates how our code is read
• Programs are read left to right, top to bottom
• Pseudo Code helps us plan out the control flow of our program