WebScraping in Java

Question

I wanted to start getting into web scraping so i made this very simple code for a currency converter. Here I have these lines of code but I keep getting a null pointer exception even though an output exists. I am basically going on to the site after inputting the currencies to and from and then saying the amount of currency then I am getting the text that is the output and saving it into a variable called Num, but it always says Num is null. What am I doing wrong and how do I fix it. Here is my website I am using. https://www.x-rates.com/calculator/?from=USD&to=EUR&amount=5

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URLEncoder;
import java.util.List;

import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlElement;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlItalic;
import com.gargoylesoftware.htmlunit.html.HtmlOption;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlRadioButtonInput;
import com.gargoylesoftware.htmlunit.html.HtmlSelect;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextArea;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;
import com.gargoylesoftware.htmlunit.javascript.host.dom.Document;

import java.util.Scanner;

import org.jsoup.Jsoup;

public class SwissArmyKnife {
   public static void main(String[] Args) {
       System.out.println(Converter());

   }
   public static String Converter() {
       String From = " ";
       String To = " ";
       boolean again = true;
       while(again) {
       Scanner scf = new Scanner(System.in);
       System.out.println("Which currency should it be converted from? A. Euro B. USD C. Pound D. Rupee E. Canadian Dollar F. Austalian Dollar");
       String Answer = scf.next();
       if(Answer.equals("A")|| Answer.contentEquals("a")) {
           From = "EUR";
           again = false;
       }else if(Answer.equals("B")|| Answer.contentEquals("b")){
           From = "USD";
           again = false;
       }else if(Answer.equals("C")|| Answer.contentEquals("c")){
           From = "GBP";
           again = false;
       }else if(Answer.equals("D")|| Answer.contentEquals("d")){
           From = "INR";
           again = false;
       }else if(Answer.equals("E")|| Answer.contentEquals("e")){
           From = "CAD";
           again = false;
       }else if(Answer.equals("B")|| Answer.contentEquals("b")){
           From = "AUD";
           again = false;
       }else {
           System.out.println("Sorry, Incorrect input");
       }
       }
       again = true;
       while(again) {
           Scanner scf = new Scanner(System.in);
           System.out.println("Which currency should it be converted to? A. Euro B. USD C. Pound D. Rupee E. Canadian Dollar F. Austalian Dollar");
           String Answer = scf.next();
           if(Answer.equals("A")|| Answer.contentEquals("a")) {
               To = "EUR";
               again = false;
           }else if(Answer.equals("B")|| Answer.contentEquals("b")){
               To = "USD";
               again = false;
           }else if(Answer.equals("C")|| Answer.contentEquals("c")){
               To = "GBP";
               again = false;
           }else if(Answer.equals("D")|| Answer.contentEquals("d")){
               To = "INR";
               again = false;
           }else if(Answer.equals("E")|| Answer.contentEquals("e")){
               To = "CAD";
               again = false;
           }else if(Answer.equals("B")|| Answer.contentEquals("b")){
               To = "AUD";
               again = false;
           }else {
               System.out.println("Sorry, Incorrect input");
           }
           }
       again = true;
       float Amount= 0f;
       while(again) {
           Scanner scf = new Scanner(System.in);
           System.out.println("How much of the currency should be converted?");
           String Answer = scf.next();

           try {
               Amount = Float.parseFloat(Answer); 
               again = false;
           }catch(Exception e) {
               System.out.println("Error: "+ e);
               again = true;

       }
       }
       WebClient client = new WebClient();
       client.getOptions().setCssEnabled(false);
       client.getOptions().setJavaScriptEnabled(false);
       try {
         String Amounts = Float.toString(Amount);
         String searchUrl = "https://www.x-rates.com/calculator/?from="+URLEncoder.encode(From, "UTF-8")+ "&to="+URLEncoder.encode(To, "UTF-8")+"amount="+URLEncoder.encode(Amounts, "UTF-8");
         HtmlPage page = client.getPage(searchUrl);
         HtmlElement Num = ((HtmlElement) page.getFirstByXPath(".//p/span[@class='ccOutputRslt']")) ;
         //System.out.println(page.asXml());

         return Num.asText();
       }catch(Exception e){
         e.printStackTrace();
         return "Whoops!";
       }

   }   


}