Classical

Object Oriented Programming - Classes

1:  

Class A

{ public :

A(void)

{cout <<  "Howzaht" ; }

~ A(void)

{cout << "whatizit " ; }

};

class B:A

{ public:

 ~ B (void)

{

cout  << "WYSIWYG" ;

}

cout << "YACC" ; 

}

};

 

The declaration B x; 

A.

prints Howzhat WYSIWYG YACC Whatizit

B.

prints nothing

C.

prints YACC Whatizit Howzhat WYSIWYG

D.

none of the above

 
 

Option: A

Explanation :


2:  

Class A

{ public :

A(void)

{cout <<  "Howzaht" ; }

~ A(void)

{cout << "whatizit " ; }

};

class B:A

{ public:

 ~ B (void)

{

cout  << "WYSIWYG" ;

}

cout << "YACC" ; 

}

};

If the main function has the two statements
B x ;
cout  << " done" ;
the output will be  

A.

Howzhat WYSIWYG YACC Whatizi t done

B.

Howzhat WYSIWYG done YACC Whatizit

C.

Yl>.CC Whatizit Howzhat WYSIWYG done

D.

none of the above

 
 

Option: B

Explanation :


3:  

Let class APE be a friend of class SAPIEN. Let class HUMAN be a child class of SAPIEN and let MONKEY be a child class of APE. Then    

A.

SAPIEN is not a friend of APE

B.

APE is not a friend of HUMAN

C.

MONKEY is not a friend of SAPIEN

D.

All of these

 
 

Option: D

Explanation :


4:  

A class having no name    

A.

cannot be passed as an argument

B.

cannot have a constructor

C.

cannot have a destructor

D.

All of these

 
 

Option: D

Explanation :


5:  

For a method to be an interface between the outside world and a class, it has to be declared    

A.

private

B.

protected

C.

public

D.

external

 
 

Option: C

Explanation :




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Syllabus covered in this section is-

  • O-O Programming Concepts , Class object instantiation
  • Inheritance, polymorphism and overloading
  • C++ Prograinming - Elements of C++, Tokens,
  • Identifters Variables and constants, data, types
  • Operators, Control, statements
  • Functions
  • Parameter passing
  • Class and objects
  •  Constructors and destructors
  •  Overloading,  Inheritance,
  • Templates, Exception handling

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  • Post Graduate Computer Science Exam
  •  PhD Entrance Exam
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