11. Which one of the following is not an access modifier?

1. 1. Void

   
   
   

   2. Protected

   
   
   

   3. Private

   
   
   

   4. Public

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Public, private, protected and default are the access modifiers.

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12. All the variables of class should be ideally declared as ?

1. 1. default

   
   
   

   2. private

   
   
   

   3. public

   
   
   

   4. protected

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The variables should be private and should be accessed with get and set methods.

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13. What is the output of this program?
    

    
    class box_area 
        {
            int w;
            int l;
            int h;
            box_area() 
            {
            w = 7;
            l = 4;
            h = 2;
            }
            void volume() 
            {
                 int vol = w * h * l;
                 System.out.println(vol);
            } 
        }    
       public class cons_method 
        {
            public static void main(String args[]) 
            {
                box_area obj = new box_area();
                obj.volume();
            } 
        }
    

1. 1. 36

   
   
   

   2. 46

   
   
   

   3. 54

   
   
   

   4. 56

   
   
   

   5. 66

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Output: 56

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14. How can a protected modifier be accessed?

1. 1. accessible by all

   
   
   

   2. accessible only within package

   
   
   

   3. accessible only within the class

   
   
   

   4. accessible within package and outside the package but through inheritance only

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   The protected access modifier is accessible within package and outside the package but only through inheritance. The protected access modifier can be used with data member, method and constructor. It cannot be applied on the class.

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15. What happens if constructor of class N is made private?

1. 1. Any class can instantiate objects of class N

   
   
   

   2. Inherited class can instantiate objects of class N

   
   
   

   3. classes within the same package as class A can instantiate objects of class N

   
   
   

   4. Objects of class N can be instantiated only within the class where it is declared

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   If we make any class constructor private, we cannot create the instance of that class from outside the class.

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