XII-CS-SUMMER VACATION HOME WORK
SUMMER VACATION HOME WORK FOR XII
COMPUTER SCIENCE STUDENTS 2014-15
1 1. Differentiate between a global variable and a local variable. Also
give suitable example in C++.
- What is the need of defining a MACRO using #define directive. Explain with suitable example.
3. What is the function overloading? Explain
example the term “default arguments”.
4. Write
the names of the header files to which the following belong:
(i). setw() (ii). randomized()
5. Name the header files, to which the
following built-in functions belong
i) exp( ) ii) isalnum( )
6. Rewrite
the following program after removing the syntactical errors (if any). Underline
each correction.
#include
<iostream.h>
struct Pixels
{ int Color,Style;}
void
ShowPoint(Pixels P)
{ cout<<P.Color,P.Style<<endl;}
void main()
{
Pixels Point1=(5,3);
ShowPoint(Point1);
Pixels Point2=Point1;
Color.Point1+=2;
ShowPoint(Point2);}
7. Find
the output of the following program: #include<iostream.h>
#include<ctype.h>
void main( )
{
char Mystring[ ] = "what@ANIDea!";
for(int I=0;
Mystring [I] ! = '\0' ; I++)
{
if(!isalpha
(Mystring[I]) )
Mystring[I ]= ' * ';
else
if(isupper (Mystring[I] ))
Mystring[I]
= Mystring[I]+1;
else
Mystring[I] = Mystring[I+1];
}
cout<<Mystring;
}
8. In the following program, if the value of N
given by the user is 20, what maximum and minimum values the program could
possibly display?
void main()
{
randomize();
int R, Tot=0;
R=random(N) +1;
Tot + = R;
cout<< Tot;
}
9. What are difference between constructor and destructor? Give a
suitable example copy constructor.
10. Answer the questions (i) and (ii) after going
through the following program:
class Match{
int Time;
public:
Match() //Function
1
{
Time=0;
cout<<”Match commences”<<end1;
}
void Details() //Function
2
{
cout<<”Inter Section Basketball Match”<<end1;
}
Match(int Duration) //Function 3
{
Time=Duration;
cout<<”Another Match begins now”<<end1;
}
Match(Match &M) //Function
4
{
Time=M.Duration;
cout<<”Like Previous Match ”<<end1;
}};
i)
Which category of constructor - Function 4
belongs to and what is the purpose of using it?
ii)
Write statements that would call the member
Functions 1 and 3
11 . Answer the questions
(i) to (iv) based on the following: class CUSTOMER
{
int Cust_no;
char Cust_Name[20];
protected:
void Register();
public:
CUSTOMER();
void Status();
};
class SALESMAN
{ int Salesman_no;
char Salesman_Name[20];
protected:
float Salary;
public:
SALESMAN();
void Enter();
void Show();
};
class SHOP :
private CUSTOMER , public SALESMAN
{
char Voucher_No[10];
char Sales_Date[8];
public:
SHOP();
void Sales_Entry();
void Sales_Detail(); };
(i)
Write the names of data members which are accessible
from objects belonging to class CUSTOMER.
(ii)
Write the names of all the member functions
which are accessible from objects belonging to class SALESMAN.
(iii)
Write the names of all the members which are
accessible from member functions of class SHOP.
(iv) How
many bytes will be required by an object belonging to class SHOP?
12.Write a
function in C++ to return the element which is present maximum number of times
in an array . the function prototype is given below.
Int MAX(int
arr[], int size)
e.g : If the
array is 2 4 2 4 2 4 2 4 2 4 2 2 4
then the function
will return a vale 2
13. Name the header files that shall be needed for the following
code:
void main()
{
int N, G;
randomize();
cin>>N;
G=random(N-5)+5;
cout<<G<<endl;
}
14. Rewrite the following program after removing the syntax
error(s), if any. Underline each correction #include<iostream.h>
int main()
{
struct
student
{
int. rno, mark;
}stu;
student
stuA= (1001,49);
student stuB= stuA;
if (stuA!= stuB)
stuA.mark= 55;
else
stuB.mark= 25;
cout<<stuA.mark<<stub.mark;
}
15.
Rewrite the following program
after removing syntactical error(s) if any. Underline each correction.
#include<iostream.h>
void main( )
{
struct movie
{ char movie_name[20];
char movie_type;
int tickets=100;
} MOVIE;
gets(movie_name);
gets(movie_type);
}
16.Differentiate between a default and a parameterized constructor
in context of class and object. Give suitable example in C++.
17.Explain
with suitable examples how to create the object by calling the constructor implicitly and explicitly.
18. Answer the questions (i)
and (ii) after going through the following class
class Computer {
char C_name[20];
char Config[100];
public:
Computer(Computer &obj); // function1
~Computer(); //function 2
};
(i) Write the statement(s)
which will invoke the function 1.
(ii) Name the specific
feature of the class shown by function 2. Also write the time of its invoke.
19. Answer
the questions (i) and (ii) after going through the following program:
#include <iostream.h>
#include<stdio.h>
#include<string.h>
class shares { char
company[20];
int no_of_shares;
public:
shares() /
/ function 1
{
strcpy(company,” “);
no_of_shares =
0;
}
shares(char
factory[], int n) / /
function 2
{
strcpy(company,factory);
no_of_shares =
n;
}
void
read_data() /
/ function 3
{
gets(company);
cin>>no_of_shares;
}
~shares() /
/ function 4
{
cout<<”Share market holiday”<<endl; } };
(i)
Write the statements to call function 1 and function 2.
(ii)
What is
the role of function 3 and function 4 in this class shares?
20.Write a function in C++ which accepts an integer array and its
size as arguments and change all the even number with twice and odd with
thrice.
Example: if an array of five
elements initially contains the element as
2,4,1,5,7
then the function should
rearrange the array as
4,8,3,15,21
21. Write a function in C++ which accepts an integer array
and its size as arguments/ parameters and then assigns the elements into a two
dimensional array of integers in the following format:
|
If the array is 1, 2, 3, 4, 5, 6
The resultant 2 D array is given below |
If the array is 1, 2, 3
The resultant 2 D array is given below |
|||||||
|
0
0 0 0 0 6 |
0
0 0 0 5 5 |
0
0 0 4 4 4 |
0
0 3 3 3 3 |
0
2 2 2 2 2 |
1
1 1 1 1 1 |
0
0 3 |
0
2 2 |
1
1 1 |
22.An array A[40][10] is
stored in the memory along the column with each element occupying 4 bytes. Find
out the Base address and address of the element A[3][6] if the element A[30][10]
is stored at the address 9000.
23.Given
two dimensional array A[10][20], base address of A being 100 and width of each element is 4 bytes, find the location of
A[8][15] when the array is stored as (a) column wise (b) Row wise.
24.An array P[20][30] is stored in the memory along the column with each
of the element occupying 4 bytes, find out the memory location for the element
P[5][15], if an element P[2][20] is stored at the memory location 5000.
25.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.
26. Define a class named DRAMA in C++ with the following
description
Private members
SHOW_NO integer
NAME_OF_THE_DRAMA Array of characters (String)
DAY integer (Total number of days the same drama is shown)
DAILY_COLLECTION float
TOTAL_COLLECTION float
Public Members
Private members
SHOW_NO integer
NAME_OF_THE_DRAMA Array of characters (String)
DAY integer (Total number of days the same drama is shown)
DAILY_COLLECTION float
TOTAL_COLLECTION float
Public Members
input_data :
A user defined function to read
an object of ENTRY type
print_data
: A function to display the details of an object
update_data:
A function to update the total collection and daily
collection once the day
changes.
Total collection will be incremented by daily collection and daily collection is made Zero
27.Define a
class in C++ with following description:
Private Members
·
A data member Flight number of type integer
·
A data member Destination of type string
·
A data member Distance of type float
·
A data member Fuel of type float
·
A member function CALFUEL() to calculate the
value of Fuel as per the following criteria
Distance Fuel
<=1000 500
more
than 1000 and <=2000 1100
more
than 2000 2200
Public Members
·
A function FEEDINFO() to allow user to enter
values for Flight Number, Destination, Distance & call function CALFUEL()
to calculate the quantity of Fuel
·
A function SHOWINFO() to allow user to view the
content of all the data members
28.Answer
the questions (i) to (iv) based on the following code:
class engineering
{
private:
char
streamcode[5];
protected:
int seats;
void allot();
public:
engineering();
void streamread();
void streamwrite();
};
class dept : protected engineering
{
char deptname[20];
int strength;
public:
dept();
void deptread();
void
deptwrite();
};
class course: public dept
{
char
coursename[20];
float fees;
public:
course();
void
courseread();
void
coursewrite();};
(i)
Which type of inheritance is shown in the above
example?
(ii)
How many bytes will be required by an object of
the class dept and course?
(iii)
Write the name of all the data members
accessible from member functions of the class course.
(iv)
Write the members which are accessible from the
object of the class dept.
29. 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) 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) If the class cosmetics
inherits the properties of food_products class also, then name the type of
inheritance.
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