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Can we create abstract methods in a non-abstract class ?
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13
Overrided method visibility must be the same or less restrictive than the inherited method.10
Inheritance in OOP.3
Which modification of the following code WILL NOT make the output be "success" ?4
Explain the difference between overriding and overloading in OOP.5
When can you do a+b in OOP ?7
Can a class implements several interfaces ?3
What does the following code return ?