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Can we create abstract methods in a non-abstract class ?
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Which modification of the following code WILL NOT make the output be "success" ?11
Overrided method visibility must be the same or less restrictive than the inherited method.9
Inheritance in OOP.3
What does the following code return ?6
Can a class implements several interfaces ?3
Explain the difference between overriding and overloading in OOP.4
When can you do a+b in OOP ?