How we creat a calculator

Programme:

#include<iostream>

#include<conio.h>

using namespace std;

int main()

{

int a,b,result;

char option,n;

do

{

cout<<"What Opration you to do want"<<endl;

cout<<"+.Addition"<<endl;

cout<<"-.Subtraction"<<endl;

cout<<"*.Multiply"<<endl;

cout<<"/.Devide"<<endl;

cin>>n;

cout<<"Enter First Number:";

cin>>a;

cout<<"Enter Second Number:";

cin>>b;

switch(n)

{

case '+':

result=a+b;

cout<<"Addition Of Two Number is="<<result<<endl;

break;

case '-':

result=a-b;

cout<<"Subtraction Of two number is="<<result<<endl;

break;

case '*':

result=a*b;

cout<<"Multiuplication Of Two Number is="<<result<<endl;

break;

case '/':

result=a/b;

cout<<"Division Of Two Number is="<<result<<endl;

break;

default:

cout<<"Invalid Number"<<endl;

}

cout<<"Do You Want To continue Press Y?"<<endl;

option=getch();

}

while(option=='y');

getch();

return 0;

}