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Calculator.cpp
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Calculator.cpp
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# include <iostream> // provides basic input and output services for C++ programs
using namespace std;
int main() {
// defining operator
char op;
// defining two operands (number1 and number2)
float num1, num2;
// priting message to a console
cout << "Enter operator: +, -, *, /: ";
// fetching user's input for an operator
cin >> op;
// priting message to a console
cout << "Enter two operands: ";
// fetching user's operands input for an operator
cin >> num1 >> num2;
switch(op) {
// summarising
case '+':
cout << num1 << " + " << num2 << " = " << num1 + num2;
break;
// deducting
case '-':
cout << num1 << " - " << num2 << " = " << num1 - num2;
break;
// multiplying
case '*':
cout << num1 << " * " << num2 << " = " << num1 * num2;
break;
// deviding
case '/':
cout << num1 << " / " << num2 << " = " << num1 / num2;
break;
default:
// If the operator is other than +, -, * or /, error message is shown
cout << "Error! operator is not correct";
break;
}
return 0;
}