import javax.swing.JOptionPane;

public class A2
{
  public static void main(String [] args)
  {
    String input1 = JOptionPane.showInputDialog("Welcome to the calculator! \nPlease enter your first number.");
    double value1 = Double.parseDouble(input1);

  String operator = JOptionPane.showInputDialog("What would you like to do? \nPlease choose from the following options: \n+\n-\n*\n%\n/");

  String input2 = JOptionPane.showInputDialog("Please enter your second number.");
  double value2 = Double.parseDouble(input2);

      if (operator == "+")
        {

          double z= add(value1,value2);
           JOptionPane.showInputDialog("The result of" + value1+value2+z );
        }

       else if  (operator == "-")
        {
             double z=minus(value1,value2);
              JOptionPane.showInputDialog("The result of" + value1+value2+z );
        }

       else if (operator == "/")
        {    double z=divide(value1,value2);
          JOptionPane.showInputDialog("The result of" + value1+value2+z );

        }
        else if (operator == "*")
        {
          double z= multiple(value1,value2);
           JOptionPane.showInputDialog("The result of" + value1+value2+z );

        }
         else if (operator == "%")
        {
           double z=modulus(value1,value2);
            JOptionPane.showInputDialog("The result of" + value1+value2+z );

        }
    }

        public static double add(double x, double y)
        { double z = x+y;
          return z;
        }

         public static double minus(double x, double y)
        { double z = x-y;

          return z;
        }

          public static double multiple(double x, double y)
        { double z = x*y;

          return z;
        }
           public static double divide(double x, double y)
        { double z = x/y;

          return z;
        }
        public static double modulus(double x, double y)
        { double z = x%y;

          return z;
        }
}