1.
Define a class
Travel in C++ with the description given below:
Private members:
plancode of type long place of type characters array
number_of_travellers of type integer
number_of_buses
of type integer
Public members:
A constructor
to assign initial values of plancode as 1001, place as “Kolkata”,
number_of_travellers as 5 and number_of_buses as 1
A function newplan( ) which allows user to enter
plancode , place and number_of_travellers and also assign the number_of_buses
as per the following conditions:
number_of_travellers number_of_buses
less than 20 2
equal to and more than 20
and less than
40 3
equal to and more than 40 4
A
function show( ) to display the contents of all the data members on the screen
2. Answer the questions (i) to (iv)
based on the following code :
class Goods {
int id; protected :
char name[20]; long qty;
void Incr(int n);
public :
Goods(); ~Goods();
void get();
};
class Food_products : public Goods {
char exp_dt[10];
protected : int id; int qty;
public :
void getd();
void showd();
};
|
class Cosmetics : private Goods {
int qty; char exp_date[10];
protected : int id;
public :
~Cosmetics();
Cosmetics();
void show();
};
|
(i)
How many bytes
will be required by an object of class Food_products.
(ii)
(ii) Name the member functions accessible
through the object of class Food_products.
(iii)
From the following, Identify the member
function(s) that cannot be called directly from the object of class Cosmetics
show(), getd(), get()
(iv)
(iv) If the class cosmetics inherits the
properties of food_products class also, then name the type of inheritance
33 . Describe friend function with example.
44 . what is static data member and static function
55 . Explain nested class with suitable program.
66 . Write four
features of constructor and destructor
77 . Write the following law of Boolean algebra and prove
with truth table
a)
Absorption
law b) distributive law c) complementary law d) involution law
e) Idempotent
law f) associative law
8) Write D Morgan’s theorem and prove it
algebraically
9) Define the following terms
a) keyword b)literals
c) identifier d) default parameter e) function prototype f) type casting g) explicit data type conversion h) random()
i) randomize() j) header
files k
