only write the answers. Explanation is not needed. thank You. 17. In an interfacecan have concrete as well as abstract methodall methods need to be concreteall methods need to be abstract except a concrete constructorall methods need to be abstract18. Which of these methods are used to register a keyboard event listener? -addkeylistener()addActionListeneroKeyboardlisteneroaddkeyboardlistener)19. Which among the following is false?Objects can be passed by referenceObject must be created before using members of a classMemory for an object is allocated only after its constructor is calledObjects size does not depend on its class data members20. Which is private member functions access scope?Member functions which are accessible in derived classMember functions which can't be accessed inside the classMember functions which can only be used within the classMember functions which can be used outside the class21. In a java program, a class contain a function named "hello0". Which among the followingdeclaration of function will make it inaccessible outside of the class in same package?protected void hello0static void hello()protected void showovoid hello0 22. Private member functionsCannot be accessed from enclosing/outer classCan be accessed from enclosing/outer classCan be accessed only if inner class is privateCan be accessed only if inner class is public23. We cannot make main() function to be private?TrueFalse24. Whether there arise or not an Exception in try block, following always executes (if present withthe try block)A finally block after System.exit(0); is executedA finally block with catching exception matched with the exception thrown in try blockA catch block with catching exception matched with the exception thrown in try blockA finally block when System.exit(0); is not executed in catch block

Answered: 17. In an interface. can have concrete…

17. In an interface. can have concrete as well as abstract method all methods need to be concrete all methods need to be abstract except a concrete constructor all methods need to be abstract

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 20RQ

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