2.2 Programming

2.2 Programming

1. Iteration

   • Repetition, Loops
     • Loops repeat until a certain condition is met
       • Advantages
         • Shorter programs
           • Quicker to change
             • Less chance of making a mistake
       • Disadvantages
         • Harder to initially make
           • if not coded correctly it could be stuck in a loop
       • code is repeated

2. Data Types

   • How data is stored and represented
   • Integer=whole number value
     • String=words
       • Float=fractional/decimal numbers
         • Boolean=true or false, two possible values
           • Character=a letter

3. Arrays

   • A data structure that holds items belonging to the same data type

4. Selection

   • a decision made in a section of code
     • IF or ELSE

5. Sequence

   • When lines of code are executed one after another

6. Variables

   • named locations in memory that store values that can change
     • Need to be declared

7. Constant

   • named locations in memory that can't change