Difference between revisions of "AP Computer Science"
From WLCS
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*# Classes can '''implement''' multiple interfaces | *# Classes can '''implement''' multiple interfaces | ||
*# Implementing an interface requires "implementing" the methods of the interface | *# Implementing an interface requires "implementing" the methods of the interface | ||
+ | * Interface example walk-through | ||
== Thursday (3/7/19) == | == Thursday (3/7/19) == |
Revision as of 21:55, 12 March 2019
Monday (3/11/19)
Warmup:
- Hand-written free-response question (22 minutes)
Agenda:
- Free-response question rubric & grading
- Abstract classes review
- Complete Activity 24: Transactions
- Interfaces
- Real-world interface examples (mouse, keyboard, num pad, calculator, head phones, etc)
- implements keyword
- Interfaces do not have instance variables (you can have static final variables)
- Interfaces only contain method signatures (no method bodies or implementations)
- Classes can implement multiple interfaces
- Implementing an interface requires "implementing" the methods of the interface
- Interface example walk-through
Thursday (3/7/19)
Agenda:
- Confirm that you have completed the Albert.io Inheritance & Polymorphism assignment
- Questions?
- Method overriding review & example
- Complete eIMACS: Lab 4: Inventory Tracking
- static keyword (for methods or for variables)
- binds the method or variable to the class NAME as opposed to the object instance
- static method example
- static variable example
- final keyword
- makes the variable unchangeable
- final variable example
- abstract keyword
- Abstract classes walk-through (Animal->Mammal, Fish, Bird)
- Object instances of abstract classes are *not* allowed
- Derived sub-classes of abstract classes must implement abstract methods (unless the sub-class is also abstract)
Tuesday (3/5/19)
Agenda:
- Confirm that you have completed Activity 19
- Complete the Albert.io Inheritance & Polymorphism assignment
- Complete eIMACS: Lab 4: Inventory Tracking