Pseudocode

Pseudocode

• Pseudo code is a language used to define algorithms that is close to both English and program code
• once we have the flowchart to outline how the solution should work, we can start to turn this into a format we can code
• we can use pseudo code to define our algorithm in a format that will easily translate into program code, but which does not require to use the precise detail of the programming language
• The pseudo code simply outlines the steps in our program to achieve a working solution

Pseudo code

• The algorithm:
• Input 2 numbers
• Output -- their total becomes:
• Input num1
• Input num2
• total := num1 + num2
• Output total

Pseudo code

• The pseudo code defines the logic of the problem to be solved before we develop the actual code to solve the problem
• The pseudo code defines the structure for the actual code, but does not need to include all the syntax (rules) required by our programming language
• There is no formal standard for pseudo code but there are some conventions that are widely used
• It is normal practice to indent structures within the pseudo code to highlight them and show where they start and end
• line numbers are sometimes included so that it is easier to identify a section of the code

Folie 4

Pseudo code

• Pseudo code
• Input num1
• Input num2
• Total := num1 + num2
• output total
• Code
• dim num1, total as integer
• Num1 = InputBox ("Enter first number")
• num2 = InputBox ("Enter second number")
• Total = num1 + num2
• console.writeline("value is", total)