2.2 Programming Techniques

2.2 Programming Techniques

1. Variable - Value STORED IN MEMORY LOCATION that can change WITHIN IN A PROGRAM

2. Constant - Value STORED IN A MEMORY LOCATION that never changes WITHIN A PROGRAM

3. Types of Errors

   • Syntax Error - An error in the rules/grammar of the language Eg missing colon / spelling mistake
   • Logic Error - The program is written to do something other than what the programmer intended Eg Resetting only the first 9 elements in an array instead of all 10.
   • Run Time Error - The program is written to do something other than what the programmer intended Eg Resetting only the first 9 elements in an array instead of all 10.

4. # Comments Use these to add comments in to your code to explain what you have done

5. Validation: An computer check to ensure that the data entered is sensible and reasonable.

6. Count controlled Iteration: Repeats a set number of times

7. Iteration: Act of repeating or looping specific sections of code

8. Condition controlled: Repeats until a condition is met or something in the program changes