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Is an interface a type ?
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3
What does the following code return ?4
When can you do a+b in OOP ?2
Which modification of the following code WILL NOT make the output be "success" ?6
Can a class implements several interfaces ?9
Inheritance in OOP.3
Explain the difference between overriding and overloading in OOP.11
Overrided method visibility must be the same or less restrictive than the inherited method.