Exercise #3: Simple Calculator Write a C++ program that prompts the user to ente

Question

Exercise #3: Simple Calculator Write a C++ program that prompts the user to enter two integers and a symbol for one of the four arithmetical operators (+,-, *, /, %). The program then uses the switch statement to print the result of the arithmetical operation, otherwise the program displays the message "Invalid symbol" Sample input / output: Enter two integers:59 Enter the symbol of an arithmetical operator (+, -, *, /, %): + 5+9=14 Enter two integers: 59 Enter the symbol of an arithmetical operator (+, -, *, 1, %): ^ SA9 -Invalid symbol!!!

Explanation / Answer

#include<iostream.h>
#include<conio.h>

int main()
{
    clrscr();
    char op;
    int num1, num2; //variable declartion

    cout << "Enter two integers: "; //enter user input
    cin >> num1 >> num2;

    cout << "Enter the symbol of an arithmetical operator(+,-,*,/,%):"; //enter user choice
    cin >> op;

    switch(op)
    {
   case '+':
        cout <<num1<<"+"<<num2<<"="<< num1+num2;
        break;

   case '-':
        cout <<num1<<"-"<<num2<<"="<< num1-num2;
        break;

    case '*':
        cout<<num1<<"*"<<num2<<"=" << num1*num2;
        break;

    case '/':
            cout <<num1<<"/"<<num2<<"="<< num1/num2;
            break;
    case '%':
            cout<<num1<<"%"<<num2<<"="<<num1%num2;
            break;

        default:
            // If the operator is other than +, -, * or /, error message is shown
            cout << "Invalid Symbol!!!";
            break;
    }

    getch();
}

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