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| Question | Answer |
| Compiled Languages | Source code (written by a programmer) is processed by software tools which link it to any other code it uses, and produces a stand-alone executable file |
| Interpreted Languages | No processing done before runtime Code is ‘interpreted’ on the users computer by special software |
| Syntax error? | The program won’t compile due incorrectly written characters or tokens in the program. Read error messages |
| What is a logic error? | The program will run but does not produce the correct result or the intended result. |
| What is refactoring? | Each time you work on your code look for ways to improve its readability |
| What is black box theory? | We don't need to know exactly how a function works in order to use it |
| variable scope? | Scope can be either local or global Local variables can only be accessed within the function Global variables can be used anywhere in the program |
| Local scope | The only way that different parts of the program can communicate with each other is by passing values between functions Due to scope restrictions, unless the function returns the value to main, main will not be able to access it This aids in debugging, as we can tell more easily where the error is if we limit communication within the program |
| Global scope | At times it may be more useful to store values which are seldom (or never) updated as global variables Global variables are accessible anywhere in the program and do not have to be passed into functions |
| What is the difference betwween "=" and "==" | = is the assignment operator == is an evaluation operator |
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