APCS: AP Computer Science A @sfhs

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qtr_1_study_guide [2019/10/04 13:07] – frchrisqtr_1_study_guide [2019/10/04 13:10] – frchris
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   - Remember method names should use () for the parameter list, even if there are no parameters   - Remember method names should use () for the parameter list, even if there are no parameters
   - Watch for dangling else statements (p 148) - without brackets, the last ''else'' belongs to the previous ''if''   - Watch for dangling else statements (p 148) - without brackets, the last ''else'' belongs to the previous ''if''
-  - forgetting to have a method return something of the correct type  
   - **Do not** add a ''System.out.print'' when no printing is requested (This can be a 1 or 2 point **Extraneous code that causes side effect** penalty on the AP Exam)   - **Do not** add a ''System.out.print'' when no printing is requested (This can be a 1 or 2 point **Extraneous code that causes side effect** penalty on the AP Exam)
   - **Do not** use local variables before first declaring them ( also a AP scoring penalty).     - **Do not** use local variables before first declaring them ( also a AP scoring penalty).  
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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
 +  - 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)   - **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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