How do I take a double input from a command line and the double input from a JOptionPane and Multiply them together to print the result?

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Java

I have the request for the numbers on the JoptionPane and the Command line but I dont know how to store them to multiply them together, can you please have a look and suggest any options I can use to get it working, here is my current code :

import java.util.Scanner;
import javax.swing.JOptionPane;
/**
 *
 * @author Adam
 */
public class Inputting {


    public static void main(String[] args) {
        Scanner Scan = new Scanner (System.in); // Creates the Scanner to allow input



        System.out.print("Enter a Number");
        String input = null;
        String first = Scan.next();



        String Second; // Second Declared as a string
        Second = JOptionPane.showInputDialog("Enter Another Number");
        double d = Double.parseDouble(Second);

        System.out.print("What is your Name?");
        String name = Scan.next();

        String Age; // Age Declared as a String
        Age = JOptionPane.showInputDialog("Enter your age ");

        System.out.print( name + " "+ "(Aged" + " " + Age +  ")" + "," + "your answer is " + first*Second );








    }

}