Please I don't understand the point "No opening and closing parenthesis ()". Please is it "No opening and closing curly bracket{}" or "No opening and closing parenthesis ()". Thank you.
what are the main difference between abstract class and interface?..
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Outline:- Abstract Classes in Java - What are Abstract Methods - What are Concrete Methods - Properties of Abstract Methods and Abstract Classes - How to use Abstract Methods
- Abstract Classes in Java - What are Abstract Methods - What are Concrete Methods - Properties of Abstract Methods and Abstract Classes - How to use Abstract Methods
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