11th Computer Science Weekly Test - 1 ( Inheritance )

MABS Institution

11th Computer Science Weekly Test - 1 ( Inheritance )-Aug 2020

Time : 1.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Which of the following statement is true or false?
(i) When a derived class inherits from many base classes is known as multilevel inheritance
(ii) When many derived classes are created from single base class called multiple inheritance
(iii) The transitive nature of inheritance is multilevel inheritance
(iv) is an example of hierarchical inheritance.

(i) false, (ii) false, (iii) true, (iv) true
(i) true, (ii) false, (iii) true, (iv) true
(i) true, (ii) false, (iii) true, (iv) false
(i) false, (ii) false, (iii) false, (iv) true

Which amongst the following is executed in the order of inheritance?

Destructor
Member function
Constructor
Object

Inheritance is process of creating new class from

Base class
abstract
derived class
Function

When classes are inherited with all the visibility modes but derived class cannot access the

private members
protected members
public members
both a and b

When the public and protected members of the base class remain the same of the derived class?

Publicly derived class
Protected derived class
Privately derived class
Publicly base class

Which of the following is the correct syntax of inheritance?

Class derived class name : base Class name {define class body};
Class base class name ; derived class name {define class body};
Class derived class name : access base class name {define class body};
Class base class name ; access derived class name {define class body};

Which of the following statement is true or false?
(i) The constructors are executed in the order of inherited class
(ii) The destructor are executed not in the order of inherited class

(i) true, (ii) false
(i) false, (ii) true
(i) true, (ii) true
(i) false, (ii) false

In which type of inheritance the order in which the derived class to inherit the base class?

right to left
left to right
top to bottom
bottom to top

Answer the following table

if base class access specifier is And a Base class member is Then, the derived class member access is

(i) Private no acess

(ii) Public

Protected (iii)

(i) Protected, (ii) Private, (iii) Public
(i) Public, (ii) Public, (iii) Protected
(i) Public, (ii) Public, (iii) Public
(i) Public, (ii) Protected, (iii) Public

Which of the below are not an example of polymorphism concept in c++?

function overloading
function overriding
operator overloading
overloading

Part - B

Generic 2 - Answer All Question

What is the difference between public and private visibility mode?

When the constructor of base class will automatically invoked?

In what multilevel and multiple inheritance differ though both contains many base class?
What is a base class?

If a base class and a derived class each include a member function with the same name and arguments, which member function will be called by the object of the derived class if the scope resolution operator is not used?

Part - C

Generic 3 - Answer All Question

What do you mean by overriding?

What is difference between the members present in the private visibility mode and the members present in the public visibility mode

Explain the uses of private, protected and public inheritance.
Write the output of the following program.//Implementation of Single Inheritance using public
visibility mode
#include < iostream >
using namespace std;
class Shape
{
private:
int count;
protected:
int width;
int height;
public:
void setWidth(int w)
{
width=w;
}
void setHeight(int h)
{
height=h;
}
};
class Rectangle: publicShape
{
public:
int getArea()
{
return (width * height);
}
};
int main()
{
Rectangle Rect;
Rect.setWidth( 5);
Rect.setHeight(7);
II Print the area of theobject.
cour<< "Total area: "<< Rect.getArea() << endl;
return ();
}

What is the difference between polymorphism and inheritance though are used for reusability of code?

Part - D

Generic 5 - Answer All Question

(a) Define Multilevel and Multiple inheritance in context of object Oriented Programming Code suitable example to illustrate the same.
(b) Answer the questions (i) to (iii) based on the following code:
class stationery
{
char Type ;
char manufacturer [10] ;
public:
stationery ( );
void Read_Sta_details ();
void Disp_sta_details( ) ;
};
class office: public stationery
}
int no_of types;
float cost_of_sta ;
public:
void Read_off_details( );
void Disp_off details( ) ;
};
class printer: private office
{
int no_of users ;
char delivary_date[10];
public:
void Read_pri _details( );
void Disp_pri _details( ) ;
};
voidmain()
{ printer Myprinter ;
}
(i) Mention the member names which are accessible by MyPrinter declared in main( ) function.
(ii) What is the size of Myprinter in bytes?
(iii) Mention the names of functions accessible from the member function Read yri-details ( ) of class printer.

Given the following set of definitions:
class x { :
};
class y : public x
{;
};
class z : public y
{;
};
(i) What order will the constructors and destructor's be invoked in?

Explain the different types of inheritance.
Write the output of the following program.
# include < iostream >
class person
{
Public:
string profession;
int age;
Person() Profession ("unemployed"),
age (16) {}
void display ( )
{
cout-<<"My profession is:
"< cout-<< "My age is: "<< age< walk ();
talk ();
}
void walk()
{ cout-<< "I can walk" < }
void talk ()
{cout-<< "I can talk" < }
};
Class Teacher: Public Person
{
Public:
void teachrnaths ( )
{cout-<< "I can teach Maths" < }
};
Class Player: Public Person
{
Public:
void play football ( )
{ cout-<< "I can play football" < }
int main ()
{
Teacher t1;
t1.profession = "Teacher"
t1. age = 24 ;
t1. display ( ) ;
t1. teachmaths( );
Player f1;
f1. profession -= "footballer"
f1. age = 21
f1. display ( ) ;
f1. play football ( ) ;
return 0;
}

Write the output of the. following program.
#include< iostream >
using namespace std;
class base
{
public:
base( )
{
cout<<"\nConstructor of base class ...";
}
~base( )
{
cout << "\nDestructor of base class .... ";
}
} ;
class derived:public base
{
public:
derived()
{
cout << "\nConstructor of derived ...";
}
~derived( )
{
cout << "\nDestructor of derived ...";
}
};
class derived 1 :public derived
{
public:
derived1( )
{
cout << "n\nConstructor of derivedl ...";
}
~derived 10
{
cout << "\nDestructor of derivedl ...";
}
};
. int main ()
{
derived1 x;
return 0;
}

Comment

Add Comment

if base class access specifier is	And a Base class member is	Then, the derived class member access is
(i)	Private	no acess
	(ii)	Public
	Protected	(iii)

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11th Computer Science Weekly Test - 1 ( Inheritance )

MABS Institution

11th Computer Science Weekly Test - 1 ( Inheritance )-Aug 2020

Part - A

Multiple Choice Question - Answer All Question

Which amongst the following is executed in the order of inheritance?

Inheritance is process of creating new class from

When classes are inherited with all the visibility modes but derived class cannot access the

When the public and protected members of the base class remain the same of the derived class?

Which of the following is the correct syntax of inheritance?

Which of the following statement is true or false? (i) The constructors are executed in the order of inherited class (ii) The destructor are executed not in the order of inherited class

In which type of inheritance the order in which the derived class to inherit the base class?

Answer the following table if base class access specifier is And a Base class member is Then, the derived class member access is (i) Private no acess (ii) Public Protected (iii)

Which of the below are not an example of polymorphism concept in c++?

Part - B

Generic 2 - Answer All Question

What is the difference between public and private visibility mode?

When the constructor of base class will automatically invoked?

In what multilevel and multiple inheritance differ though both contains many base class?

What is a base class?

If a base class and a derived class each include a member function with the same name and arguments, which member function will be called by the object of the derived class if the scope resolution operator is not used?

Part - C

Generic 3 - Answer All Question

What do you mean by overriding?

What is difference between the members present in the private visibility mode and the members present in the public visibility mode

Explain the uses of private, protected and public inheritance.

What is the difference between polymorphism and inheritance though are used for reusability of code?

Part - D

Generic 5 - Answer All Question

Given the following set of definitions: class x { : }; class y : public x {; }; class z : public y {; }; (i) What order will the constructors and destructor's be invoked in?

Explain the different types of inheritance.

Comment

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Which of the following statement is true or false?
(i) The constructors are executed in the order of inherited class
(ii) The destructor are executed not in the order of inherited class

Answer the following table

if base class access specifier is And a Base class member is Then, the derived class member access is

(i) Private no acess

(ii) Public

Protected (iii)

Given the following set of definitions:
class x { :
};
class y : public x
{;
};
class z : public y
{;
};
(i) What order will the constructors and destructor's be invoked in?