An <code>abstract</code> class
- A
Is the same as an interface
- B
Cannot be extended
- C
Has no fields
- Dcheck_circle
Cannot be instantiated; can have abstract and concrete methods
Explanation
Marked abstract; subclasses must implement abstract methods.
AP Computer Science A· difficulty 4/5
An <code>abstract</code> class
Is the same as an interface
Cannot be extended
Has no fields
Cannot be instantiated; can have abstract and concrete methods
Explanation
Marked abstract; subclasses must implement abstract methods.
Want 10 more like this — adaptive to your weak spots?