computer practical (c++ programs) for cbse xii practical exams

7/25/2019 Computer Practical (C++ Programs) for CBSE XII Practical Exams

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COMPUTER PRACTICAL

2015-16AISSCE EXAMINATION

SUBMITTED BY:

Name:

Boards Roll No:

Class: XII

School:


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Acknowledgement

I am extremely thankful to the Principal for herencouragement and for all the facilities that she provided

for this project work and Computer teachers XYZ, of ABC

for giving me the opportunity for this project work.

I am very thankful to them for their advice and guidance

during the course of my project work.

Signature of Candidate


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Certificate

This is to certify that X, student of class XII of ABC School

has completed the Computer Practical during the

academic year 2015-2016 towards partial fulfillment of

credit for the Computer Project of AISSCE 2016 and

submitted the satisfactory report as completed in the

following pages under my supervision and does notinvolve in plagiarism of any kind. The reference taken in

making this project has been declared at the end of this

report.

___________________

Teachers Signature


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Index

Sl.

no

Date Programs Page

no.

Signature Remarks

1 21/8/15

Write constructor and destructor definition

(for a class) that should display the object

number being created/destroyed of this

type

1

2 28/8/15Program to illustrate access control of

inherited members in the privately derived

class

3

3 5/9/15Calculating Sum and Product of two

numbers using Inheritance6

4 12/9/15Function Overloading to calculate the area

of a circle, rectangle and triangle9

5 19/9/15

Program to create a text file and then create

another text file by converting each line of

the newly created text file into an uppercase

string

12

6 26/9/15 Program to append data in a file 15

7 29/9/15 Bubble Sort 18

8 1/10/15 Program to demonstrate Queue using Array 20

9 4/10/15 Pushing and Popping in Stack-Array 25

10 7/10/15 Insertion in Queue 29

11 15/10/15 Deletion in Array-Queue 32

12 17/10/15Addition and deletion of new books using

linked list36

13 19/10/15 Program to demonstrate the sum of twomatrices

40

14 25/10/15 Program to find the length of the string 43

15 27/10/15Program to find the occurrence of character

in the string46


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16 31/10/15A program to illustrate Multiple Inheritance

49

17 2/11/15

Program to create two arrays to store roll

numbers and marks of desired students,

whose number would be known at run time

53

18 5/11/15Function to display the elements which lie

on middle of row and column55

19 10/11/15Program to check whether the string is

palindrome or not58

20 21/11/15Program to check whether the two strings

are equal or not61

21 25/11/15

Program to illustrate working of default

arguments. Calculate interest amount

making use of default arguments

64

22 1/12/15 SQL Program for TABLE: STUDENT 66

23 7/12/15K-Map (SOP)

70

24 7/12/15K-Map (POS)

71


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Write constructor and destructor definition for a class) that should

display the object number being created/destroyed of this type:

#include

#include

class A

{

static int count;

public:

A()

{

count++;

cout


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Output of the program for writing constructor and destructor

definition for a class) that should display the object number being

created/destroyed of this type:


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Program to illustrate access control of inherited members in the

privately derived class:

#include

#include

#include

const int LEN=25;

class Employee

{

private:

char name[LEN];

unsigned long enumb;

public:void getdata()

{

cout


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class Manager:public Employee

{

private:

char title[LEN];

public:void getdata()

{

Employee::getdata();

getbasic();

cout


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Output of the program to illustrate access control of inherited

members in the privately derived class:


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Calculating Sum and Product of two numbers using Inheritance:

#include

#include

class Sum[

public:

int a,b,c;

void getdata();

void calc();

void show();

};

void Sum::getdata(){

couta>>b;

}

void Sum::calc()

{

c=a+b;

}void Sum::show()

{

cout


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p=a*b;

}

void SumProduct::showp()

{

cout


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Output of the program for calculating Sum and Product of two

numbers using Inheritance


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Function Overloading to calculate the area of a circle, rectangle

and triangle:

#include#include

#include

#include

void area(float r)

{

float area;

cout


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switch(opt)

{

case 1:coutr;

area(r);break;

case 2:coutl>>b;

area(l,b);

break;

case 3:coutx;

couty;

coutz;

area(x,y,z);

break;

default:cout


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Output of the program for Function Overloading to calculate the

area of a circle, rectangle and triangle:


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Program to create a text file and then create another text file by

converting each line of the newly created text file into an

uppercase string:

# include

# include

# include

# include

void main()

{

char fname[20];

char str[80], ch = 'y';

int count;

cout


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}

newfile.close();

temp.close();

clrscr();

cout


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Output of the program to create a text file and then create another text file

by converting each line of the newly created text file into an uppercase

string:


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Program to append data in a file:

#include

#include#include

class stu

{

int rollno;

char name[25];

char Class[4];

float marks;

char grade;

public:

void getdata()

{

coutrollno;

coutname;

coutClass;coutmarks;

if(marks>=75)

grade=A;

else if(marks>=60)

grade=B;

else if(marks>=50)

grade=C;else if(marks>=40)

grade=D;

else

grade=E;

}


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void putdata()

{

cout


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Output of the program to append data in a file:


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Bubble Sort:

#include

#includevoid main()

{

int i,a[10],t,j;

clrscr();

cout


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Output of Bubble Sort:


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Program to demonstrate Queue using Array:

#include

#include

#include

#define SIZE 5

int rear=-1, front=-1;

void main()

{

void insert(int q[], int s, int num);

void delete_Q(int q[]);

void show(int q[]);

int que[SIZE],ch,x;

while(1)

{

cout


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if(rear==-1)

{

front=rear=0;

q[rear]=num;

}else if(rear==s-1)

{

cout


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void show(int q[])

{

int i;

if(front==-1)

{cout


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Output of the program to demonstrate Queue using Array:


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Output of the program to demonstrate Queue using Array:


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Pushing and Popping in Stack-Array:

#include

#include

#include

#include

struct Node

{

int info;

Node*next;

}

*top,*newptr,*save,*ptr;

Node*Create_New_Node(int);

void Push(Node*);

void Display(Node*);

void Pop();

void main()

{

top=NULL;

int inf;

char ch=y;while(ch==y || ch==Y)

{

coutinf;

newptr=Create_New_Node(inf);

if(newptr==NULL)

{

cout


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cin>>ch;

}

system(cls);

do

{cout next=NULL;return ptr;

}

void Push(node*np)

{

If(top=NULL)

top=np;

else

{save=top;

top=np;

np -> next=save;

}

}


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void Pop()

{

If(top==NULL)

cout


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Output of the program for Pushing and Popping in Stack-Array:


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Insertion in Queue:

#include

#include

#include

int Insert_in_Q(int [],int);

void Display(int [], int, int);

const int size=50;

int Queue[size], front=-1, rear=-1;

void main()

{

int Item,res;

char ch='y';

clrscr();

while(ch=='y' || ch=='Y')

{

coutItem;

res=Insert_in_Q(Queue,Item);

if(res==-1){

cout


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if(rear==size-1)

return-1;

else if(rear==-1)

{

front=rear=0;Queue[rear]=ele;

}

else

{

rear++;

Queue[rear]=ele;

}

getch();}

void Display(int Queue[], int front, int rear)

{

if(front==-1)

return;

for(int i=front;i


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Output of the program for Insertion in Queue:


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Deletion in Array-Queue:

#include

#include

#include

#include

int Remove(int []);

int Insert(int [],int);

void Display(int [],int,int);

const int size=50;

int Queue[size],front=-1,rear=-1;

void main()

{

int Item,res;

char ch='y';

clrscr();

while(ch=='y' || ch=='Y')

{

coutItem;

res=Insert(Queue,Item);if(res==-1)

{

cout


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{

res=Remove(Queue);

if(res==-1)

{

cout


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int Remove(int Queue[])

{

int ret;

if(front==-1)

return-1;else

{

ret=Queue[front];

if(front==rear)

front=rear=-1;

else

front++;

}return ret;

}

void Display(int Queue[],int front,int rear)

{

if(front==-1)

return;

for(int i=front;i


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Output of the program for Deletion in Array-Queue:


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Addition and deletion of new books using linked list:

# include

# include class NODE

{

public:

int bookno;

NODE *link;

};

class LINKLIST

{ private:

NODE *first,*last,*temp;

public:

void NCREATE(int); // Create a linked list with n nodes

void insertatk(int); // Inserting at kth position

void display(); // Display the linked list

};

void LINKLIST::NCREATE( int n)

{

first = new NODE;

cout > first->bookno;

first->link = NULL;

temp = first;

for(int i =1;i last->bookno;

last->link = NULL;

temp->link = last;

temp = last;


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}

}

void LINKLIST::insertatk(int j) // Function to insert the node at kth position

{

int i = 0;NODE *newnode,*back;

newnode = new NODE;

cout>newnode->bookno;

newnode->link = NULL;

temp = first;

while (i < (j-1))

{back = temp;

temp = temp->link;

i++;

}

back->link = newnode;

newnode->link = temp;

}

void LINKLIST::display() //Function to display the link list{

temp = first;

cout


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char ch1 = 'y';

LINKLIST list;

clrscr();

cout > n;list.NCREATE(n);

do

{

clrscr();

cout> k;

list.insertatk(k);break;

case 2 :

list.display();

break;

}

} while (ch != 3);

}


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Output of the program for Addition and deletion of new books using linked

list


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Program to demonstrate the sum of two matrices:

#include

#include

main()

{

int a[3][3], b[3][3], c[3][3];

int i, j;

cout


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}

cout


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Output of program to demonstrate the sum of two matrices:


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Program to find the length of the string:

#include

#include

#include

#include

//CLASS DECLARATION

class strn

{

char *a;

int i;

public:

void read(); //MEMBER FUNCTIONSvoid calculate();

}; //END OF CLASS

void strn::read()

{

cout


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x.read(); //CALLING MEMBER FUNCTIONS

x.calculate();

getch();

} //E N D O F M A I N


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Output of the program to find the length of the string:


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Program to find the occurrence of character in the string:

#include

#include

#include

# include

//CLASS DECLARATION

class strn

{

char *a;

char ch;

int i;

public:void read(); //MEMBER FUNCTIONS

void find();

}; //END OF CLASS

void strn::read()

{

cout


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cout


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Output of the program to find the occurrence of character in the

string:


54/74

A program to illustrate Multiple Inheritance:

#include

#include

#include

class admin

{

int admno;

char name[30];

public:

void getadmin();

void putadmin();

};void admin::getadmin()

{

coutadmno;

cout


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};

void acadm::getacadm()

{

coutrno;coutmarks;

}

void acadm::putacadm()

{

cout


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putacadm();

cout


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Output of the program to illustrate Multiple Inheritance:


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Program to create two arrays to store roll numbers and marks of

desired students, whose number would be known at run time:

#include#include

int*rollno;

float*marks;

void main()

{

clrscr();

int size;

coutsize;

rollno=new int[size];

marks=new float[size];

if((!rollno) || (!marks))

{

cout


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Output of the program to create two arrays to store roll numbers

and marks of desired students, whose number would be known at

run time:


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Function to display the elements which lie on middle of row and

column:

#include

#include

#include

const M = 10;

const N = 10;

void display_RowCol(int Array[M][N], int r, int c)

{

clrscr();

int row = r / 2;

int col = c / 2;

// Finding the middle row

cout


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// Array to be a square matrix with odd dimension

if ((r == c) && ((r%2==1) && (c%2==1)))

{

cout


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Output of the function to display the elements which lie on

middle of row and column:


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Program to check whether the string is palindrome or not:

#include

#include

#include

//CLASS DECLARATION

class strn

{

char *a, flag;

int i, j, k;

public:

void read(); //MEMBER FUNCTIONS

void ch_pal();strn() //USE OF CONSTRUCTOR

{

flag = 'y';

}

};

//END OF CLASS

void strn::read()

{cout a; //TO READ THE STRING

}

void strn::ch_pal()

{

cout


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flag = 'n';

break;

}

}

if(flag == 'n')cout


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Output of the program to check whether the string is palindrome

or not:


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Program to check whether the two strings are equal or not:

#include

#include

#include

#include

//CLASS DECLARATION

class strn

{

char *a, *b, flag;

int i, j, k;

public:

void read(); //MEMBER FUNCTIONSvoid compare();

strn() //USE OF CONSTRUCTOR

{

flag = 'y';

}

}; //END OF CLASS

void strn::read()

{cout


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j++;

if (i != j)

{

cout


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Output of the program to check whether the two strings are equal

or not:


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Program to illustrate working of default arguments. Calculate

interest amount making use of default arguments:

#include#include

#include

void amount(float princ, int time=2, float rate=0.08);

void amount(float princ, int time, float rate)

{

cout


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Output of the program to illustrate working of default arguments.

Calculate interest amount making use of default arguments:


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TABLE: STUDENT

No: Name Stipend Stream Avgmark Grade Class

1 Karan 400.00 Medical 78.5 B 12B

2 Divakar 450.00 Commerce 89.2 A 11C

3 Divya 300.00 Commerce 68.6 C 12C

4 Arun 350.00 Humanities 73.1 B 12C

5 Sabina 500.00 Nonmedical 90.6 A 11A

6 John 400.00 Medical 75.4 B 12B

7 Robert 250.00 Humanities 64.4 C 11A

8 Rubina 450.00 Nonmedical 88.5 A 12A

9 Vikas 500.00 Nonmedical 92.0 A 12A

10 Mohan 300.00 Commerce 67.5 C 12C

WRITE SQL COMMANDS FOR QUESTIONS 1 TO 7 ON THE BASIS OF TABLE STUDENT

1) Select all the Nonmedical stream students from STUDENT.

SELECT NAME

FROM STUDENT

WHERE STREAM=NONMEDICAL;


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OUTPUT:

NAME:

SABINA

RUBINA

VIKAS

2) List the names of those students who are in class 12 sorted by stipend

SELECT NAME, STIPEND FROM STUDENT

WHERE CLASS=12

ORDER BY STIPEND;

OUTPUT:

NAME STIPEND

DIVYA 300.00

MOHAN 300.00

ARUN 350.00

KARAN 400.00

JOHN 400.00

RUBINA 450.00

VIKAS 500.00


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3) List all students sorted by avgmark in descending order:

SELECT NAME FROM STUDENT

ORDER BY AVGMARK DESC;

OUTPUT:

ROBERT

MOHAN

DIVYA

ARUN

JOHN

KARAN

RUBINA

DIVAKAR

SABINA

VIKAS

4) To count the number of students with grade A

SELECT COUNT(GRADE)

FROM STUDENT

WHERE GRADE=A;

OUTPUT:

4


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5) To insert a new student in the table anf fill the columns with some values

INSERT INTO STUDENT VALUES

(11,MANISHA,300.00,NONMEDICAL,72.5,B,12C);

OUTPUT:

ONE ROW ADDED

6) Give the output of the following SQL statement:

A) SELECT MIN(AVGMARK)

FROM STUDENT

WHERE AVGMARK

computer practical (c++ programs) for cbse xii practical exams

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