Java Arithmetic Operations Web App

Arithmetic Operations in Java

Input Form

<% String num1Str = request.getParameter("num1"); String num2Str = request.getParameter("num2"); String operation = request.getParameter("operation"); if (num1Str != null && num2Str != null && !num1Str.isEmpty() && !num2Str.isEmpty() && operation != null) { double num1 = Double.parseDouble(num1Str); double num2 = Double.parseDouble(num2Str); double result = 0; switch (operation) { case "add": result = num1 + num2; out.println("

Result: " + result + "

"); break; case "subtract": result = num1 - num2; out.println("

Result: " + result + "

"); break; case "multiply": result = num1 * num2; out.println("

Result: " + result + "

"); break; case "divide": if (num2 != 0) { result = num1 / num2; out.println("

Result: " + result + "

"); } else { out.println("

Error: Cannot divide by zero

"); } break; default: out.println("

Error: Invalid operation

"); } } %>