Class Programming

Write a class template to represent a generic vector. Include member functions to perform the following tasks:

1) To create the vector.

2) To modify the value of a given element.

3) To multiply the vector by a scalar value.

4) To display the vector in the form (10, 20, 30,…..)

#include<iostream.h>

#include<string.h>

#include<conio.h>

template<class T>

class vector

{

T *v;

int size;

public:

vector(int m);

void create(T *a);

void modify(int);

void multiply(int);

void display();

};

template<class T>

vector< T > :: vector(int m)

{

v=new T[size=m];

for(int i=0;i<size;i++)

v[i]=0;

}

template<class T>

void vector<T>::create(T*a)

{

for(int i=0;i<size;i++)

{

cin>>a[i];

v[i]=a[i];

}

}

template<class T>

void vector<T>::modify(int k)

{

v[k]=v[k]+10;

}

template<class T>

void vector<T>::multiply(int k)

{

for(int i=0;i<size;i++)

v[i]=v[i]*k;

}

template<class T>

void vector<T>::display()

{

cout.setf(ios::showpoint);

cout<<"\n(";

for(int i=0;i<size;i++)

cout<<v[i]<<", ";

cout<<")\n";

}

int main()

{

vector <float> v1(5);

vector <int> v2(5);

float *x;

int *y;

int i;

int s;

cout<<"Enter the float vector element :\n";

v1.create(x);

cout<<"Enter the Interger vector element :\n";

v2.create(y);

cout<<"Enter the element u want to modify in float vector :";

cin>>i;

v1.modify(i);

v1.display();

cout<<"\nEnter the element u want to modify in int vector :";

cin>>i;

v2.modify(i);

v2.display();

cout<<"\nEnter the number to calculate the scalar product :";

cin>>s;

v1.multiply(s);

v2.multiply(s);

cout<<"\nThe Float vector after scalar product is as follows :";

v1.display();

cout<<"\nThe integer vector after scalar product is as follows :";

v2.display();

getch();

return(0);

}

The output of the above program is:

Enter the float vector element :

1.1

2.2

3.3

4.4

5.5

Enter the Integer vector element :

10

10

30

40

50

Enter the element u want to modify in float vector :3

(1.100000, 2.200000, 3.300000, 14.400000, 5.500000, )

Enter the element u want to modify in int vector :2

(10, 10, 40, 40, 50, )

Enter the number to calculate the scalar product :2

The Float vector after scalar product is as follows :

(2.200000, 4.400000, 6.600000, 28.799999, 11.000000, )

The integer vector after scalar product is as follows :

(20, 20, 80, 80, 100, )

Thanks

Mukesh Rajput