1. We would like to make a member of a class visible in all subclasses regardless of what package they are in. Which one of the following keywords would achieve this?   public   protected   private OR protected   private   Hint Half-n-half Clue   2. Consider the following code: interface Area   All of these   Method compute() in interface Area should be declared public   Method compute() in class Room should be declared public   Interface definition is incomplete   Half-n-half Clue   3. The use of protected keyword to a member in a class will restrict its visibility as follows:   Visible only in the class where it is declared.   Visible only inside the package.   Visible only in the class and its subclass in the same package.   Visible in all classes in the same package and subclasses in other packages.   Half-n-half Clue   4. Which of the following defines a legal abstract class?   abstract class Vehicle {<br>               abstract void display(); {<br>                 System.out.println("Car"); }}   abstract class Vehicle {<br>               abstract void display(); }   class Vehicle {<br>               abstract void display(); }   abstract Vehicle {<br>               abstract void display(); }   class abstract Vehicle {<br>               abstract void display(); }   Half-n-half Clue   5. Consider the following code: class ClassA   Will compile and run successfully   Error. There is no code in the constructor ClassA(int x)   Error. ClassA does not define a no-argument constructor   Error. ClassB does not define a no-argument constructor   Error. There is no code in the class ClassB   Half-n-half Clue   6. Which of the following are not keywords? (A) NULL (B) implements (C) protected (D) extended (E) string   (C), (D) & (E)   (D)   (D) & (E)   (A), (D) & (E)   Half-n-half Clue   7. A package is a collection of   classes and interfaces   editing tools   interfaces   classes   Half-n-half Clue