Programming

Programming

1. Programming constructs

   • Iteration
     • loop
       • For Loop
         • Repeat set number of times
           • Loop thru numbers
             • for i in range(num):
           • Loop thru string
             • for letter in word:
           • Loop thou an array
             • for elements in names:
       • While loop
         • Loop until a condition is met
           • while counter > 0:
         • initialising variable
           • counter = 10
   • Selection
     • Decision
     • if elif else
       • == != > < >= <=
   • Sub programs
     • Function
       • Parameters
       • returns value
     • Procedure
   • Data structures
     • Variable
       • Single item
         • name = 'Bob'
     • Arrays
       • List
         • ['John','Jane','Sam']
       • Multiple items

2. Data types

   • Integer
     • A whole number
       • eg. 27
   • String
     • A string of characters
       • eg. text or text with numbers
   • Character
     • A single character on a keyboard
   • Boolean
     • True or False
   • Real
     • A number that includes a decimal
       • float
         • eg. 27.4

3. Algorithm

   • Pseudocode
     • command words in capitals
   • Flowchart
     • data input/ output
       • parallellogram
     • Process
       • rectangle
     • Selection
       • Diamond
     • Sub program
       • rectangle with lines
   • Sequence

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