Write a program to make a Calculator using C++ language.

Write a program to make a Calculator using C++ language.

Implementation of the above problem in C++:

#include<iostream>

using namespace std;

int main()

{

char c, operatr;

double operand1, operand2;

do

{

cout<<"Enter first number : ";

cin>>operand1;

cout<<"Operator :" ;

cin>>operatr;

cout<<"Second number : ";

cin>>operand2;

switch(operatr)

{

case '+' : cout<<"Answer="<<operand1+operand2;

break;

case '-' : cout<<"Answer="<<operand1-operand2;

break;

case '*' : cout<<"Answer="<<operand1*operand2;

break;

case '/' : cout<<"Answer="<<operand1/operand2;

break;

default : cout<<"invalid operator";

}

do

{

cout<<"\n Do another (y/n)?:";

cin>>c;

if(c!='y' && c!='n')

cout<<"invalid choice";

}

while(c!='y' && c!='n');

}

while(c == 'y');

return 0;

}

The output of the above program is tested on www.jdoodle.com

Output:

Enter first number : 2

operator : +

second number : 3

Answer = 5

Do another(y/n)?: y

Enter first number : 6

operator : *

second number : 3

Answer = 18

Do another(y/n)?: n

Thanks

Mukesh Rajput