Untitled

        System.out.print("Enter an operator(+, -, *, /):");
        Scanner s = new Scanner(System.in);
        String operator = s.next();
        s = new Scanner(System.in);
        double num1 = s.nextDouble();
        s = new Scanner(System.in);
        double num2 = s.nextDouble();
        switch (operator) {
            case "+":
                System.out.print(num1 + "+" + num2 + "=");
                System.out.print(num1 + num2);
                break;
            case "-":
                System.out.print(num1 + "-" + num2 + "=");
                System.out.print(num1 - num2);
                break;
            case "*":
                System.out.print(num1 + "*" + num2 + "=");
                System.out.print(num1 * num2);
                break;
            case "/":
                System.out.print(num1 + "/" + num2 + "=");
                System.out.println(num1 / num2);
                break;
           default:
                System.out.println("Not a valid operator");

        }