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Can we create abstract methods in a non-abstract class ?
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12
Overrided method visibility must be the same or less restrictive than the inherited method.3
Which modification of the following code WILL NOT make the output be "success" ?10
Inheritance in OOP.4
Explain the difference between overriding and overloading in OOP.7
Can a class implements several interfaces ?5
When can you do a+b in OOP ?4
What does the following code return ?