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* TI403I-2526PSP01 - Java 1: Fundamentals of OOP (P2-INT-SEM-P, P2-INT)
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Can an abstract class contain no abstract methods?
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By default and before Java 8, interface methods are:
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A concrete class that inherits an abstract class must:
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Can an abstract class have a constructor?
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By default, an attribute in an interface is:
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Can a method be both abstract and protected?
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What happens if a method is not defined in the subclass but exists in the superclass?
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Why must downcasting be explicit and checked with instanceof?
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What is downcasting?
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What is the difference between overloading and overriding?
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