Differences

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--- qtr_1_study_guide [2019/10/04 12:58] – frchris
+++ qtr_1_study_guide [2019/10/04 13:07] – frchris
@@ Line 8: / Line 8: @@
 Things to watch out for:
-  - not initializing a field ( fields are private, to encapsulate)
+  - Constructors should initialize the class's  fields  (fields are ''private'', to encapsulate)
-  - accidentally making a local variable instead of initializing a variable in a constructor
+  - **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.
-  - remember to make methods public, and don't forget to use () for the parameter list, even if there are no parameters
+  - Remember to make fields ''private'' and methods ''public'',
-  - local variables are never public nor private
+  - Remember local variables are **never** public nor private
-  - dangling else statements (p 148)
+  - 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''
   - 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)