APCS: AP Computer Science A @sfhs

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qtr_1_study_guide [2019/10/04 13:09] – frchrisqtr_1_study_guide [2019/10/04 13:13] – frchris
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 Things to watch out for: Things to watch out for:
   - Constructors should initialize the class's  fields  (fields are ''private'', to encapsulate)    - Constructors should initialize the class's  fields  (fields are ''private'', to encapsulate) 
-  - **Do not** use the type in the constructor- this accidentally makes a local variable instead of initializing the classes field that has the same name.+  - When initialzing fields in a constructor, **Do not** mention its type- this accidentally makes a local variable instead of initializing the classes field that has the same name.
   - Remember to make fields ''private'' and methods ''public'',    - Remember to make fields ''private'' and methods ''public'', 
   - Remember local variables are **never** public nor private   - Remember local variables are **never** public nor private
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   - **Do not** assign a value to a parameter inside a method unless you are asked to (also a AP scoring penalty called **Destruction of data**)   - **Do not** assign a value to a parameter inside a method unless you are asked to (also a AP scoring penalty called **Destruction of data**)
   - **Never** use ''return'' in a constructor   - **Never** use ''return'' in a constructor
-  - **Do not** ''return'' something when writing a ''void'' method ( a method that isn't supposed to return something (This too has a AP scoring penalty) 
   - Remember to ''return'' something of the same type as a method's header.    - Remember to ''return'' something of the same type as a method's header. 
-  +  - **Do not** ''return'' something when writing a ''void'' method ( a method that isn't supposed to return something (This too has a AP scoring penalty)
    
 Finally, please remember to get a good night's rest and a healthy breakfast! Finally, please remember to get a good night's rest and a healthy breakfast!
 Good Luck! Good Luck!
qtr_1_study_guide.txt · Last modified: 2023/10/09 09:23 by frchris
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