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Is an interface a type ?
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10
Inheritance in OOP.3
What does the following code return ?7
Can a class implements several interfaces ?5
When can you do a+b 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.13
Overrided method visibility must be the same or less restrictive than the inherited method.