Question

write a c++ program to implement a simple calculator

Answer 1

Hey!

Here is the program to make calc. in c++.


#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
int num1, num2;
char opr;
cout << "Enter two integers: ";
cin >> num1 >> num2;
cout << endl;
cout << "Enter operator: + (addition), - (subtraction)," << " * (multiplication), /
(division): ";
cin >> opr;
cout << endl;
cout << num1 << " " << opr << " " << num2 << " = ";
switch (opr){
case '+':
cout << num1 + num2 << endl;
break;
case'-':
cout << num1 - num2 << endl;
break;
case'*':
cout << num1 * num2 << endl;
break;
case'/':
if (num2 != 0)
cout << num1 / num2 << endl;
else
cout << "ERROR \nCannot divide by zero" << endl;
break;
default:
cout << "Illegal operation" << endl;
}
return 0;
}


Hope It helps You!

Answer 2

Answer:

Explanation:

Here we use the concept of If else statement to run the code and get the output.

code:

#include<iostream>

#include<string>

using namespace std;

int main()

{

int a,b,sum,diff,pro,div,mod;

char ch;

cout<<"Enter the first number"<<endl;

cin>>a;

cout<<"Enter the Second number"<<endl;

cin>>b;

cout<<"Enter the operation you need (+,-,*,/,%)"<<endl;

cin>>ch;

if(ch=='+')

{

sum=a+b;

cout<<"The sum of the entered two numbers is"<<sum<<endl;

}

else

if(ch=='-')

{

diff=a-b;

cout<<"The differnce of the entered two numbers is"<<diff<<endl;

}

else

if(ch=='*')

{

pro=a*b;

cout<<"The product of the entered two numbers is"<<pro<<endl;

}

else

if(ch=='/')

{

div=a/b;

cout<<"The quotient of the entered two numbers is"<<div<<endl;

}

else

if(ch=='%')

{

sum=a%b;

cout<<"The reminder of the entered two numbers is"<<mod<<endl;

}

else

cout<<"Invalid operator choosen"<<endl;

return 0;

}

Thanks!