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Java Programming : Classes and Keywords: Multiple Choice


Answer the following questions about classes and reserved keywords as used in the Java programming language.

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Multiple choice

Your Performance  

1.

Which of the following are not keywords?
(A) NULL
(B) implements
(C) protected
(D) extended
(E) string

  (D)

  (C), (D) & (E)

  (A), (D) & (E)

  (D) & (E)

  Half-n-half Clue
 

2.

Which keyword can protect a class in a package from accessibility by the classes outside the package?

  final

  don't use any keyword at all (make it default)

  private

  protected

  Half-n-half Clue
 

3.

Package p1 contains the following code:
package p1;
public class Student

  Result body is not fully defined.

  Class result should be declared public.

  Student class is not available.

  Test class is not available.

  Half-n-half Clue
 

4.

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?

  private OR protected

  public

  private

  protected

  Half-n-half Clue
 

5.

Which of the following are keywords?
(A) switch
(B) integer
(C) default
(D) boolean
(E) object

  (D)

  (E)

  (B) & (C)

  (A) & (C)

  Half-n-half Clue
 

6.

The keywords reserved but not used in the initial version of Java are:
(A) union
(B) const
(C) inner
(D) goto
(E) boolean
(F) synchronized

  All of these.

  (C) & (E)

  (B),(C) & (D)

  (A), (C) & (E)

  Half-n-half Clue
 

7.

The use of protected keyword to a member in a class will restrict its visibility as follows:

  Visible in all classes in the same package and subclasses in other packages.

  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.

  Half-n-half Clue
 


 
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