Program 3 – 4 Function Calculator

Create the equivalent four-function calculator. The program should request the user to enter a number, an operator, and another number. It should then carry out the specified arithmetical operation: adding, multiplying, subtracting, dividing the two numbers. (It should use a switch statement to select the operation). Finally it should display the result. When it finishes the calculation, the program should ask if the user wants to do another calculation. The response can be ‘Y’ or ‘N’.

#include<iostream>
using namespace std;

int main()
{   
    char ch = 'Y';
    int op;
    double a,b;
    while(ch!='N')
    {
        cout << "\nEnter first number: ";
    cin >> a;
    cout << "Enter second number: ";
    cin >> b;
    cout << "1.Add(+)\n2.Subtract(-)\n3.Multiply(x)\n4.Divide\n";
    cout<<"Enter your choice: ";
    cin >> op;
    switch(op)
    {
        case 1:
            cout << "Sum is "<<a+b;
            break;
        case 2:
            cout << "Difference is"<<a-b;
            break;
        case 3:
            cout << "Product is"<<a*b;
            break;
        case 4:
            cout<<"Division result is"<<a/b;
            break;
           
    }
    cout << "\nEnter Y/N to continue/stop";
    cin >> ch;

    }
    
    return 0;
}